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Git for Subversion users, Part 2: Taking control
Git offers Linux developers a number of advantages over Subversion for
software version control, so developers working collaboratively owe it to
themselves get familiar with the basic concepts behind it. In
this installment, Ted dissects branching and merging in both Git and
Subversion, introduces "git bisect" for bisecting changes, and shows how to
resolve merge conflicts.
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Articles |
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25 Nov 2009 |
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Using Simple for XML serialization
Java developers have a variety of choices when it comes to serializing and deserializing Extensible Markup Language (XML) objects. Simple is one such example, and it offers a number of advantages over its competitors. In this article, explore an introductory overview of how to use Simple within an XML communication system.
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Articles |
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24 Nov 2009 |
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Charming Python: Easy Web data collection with mechanize and Beautiful Soup
For collecting data from Web pages, the mechanize library automates
scraping and interaction with Web sites. Mechanize lets you fill in forms and
set and save cookies, and it offers miscellaneous other tools to make a Python
script look like a genuine Web browser to an interactive Web site. A
frequently used companion tool called Beautiful Soup helps a Python program
makes sense of the messy "almost-HTML" that Web sites tend to
contain.
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Articles |
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24 Nov 2009 |
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Cultured Perl: Flickr, a business's bst frnd
Flickr isn't just for photo sharing and social networking; it's a
legitimate business tool. Learn how Perl programmers can use the CPAN Chart
modules to create charts and graphs, and the Flickr::Upload module to upload
the charts to Flickr.
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Articles |
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24 Nov 2009 |
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The Equinox p2 provisioning framework
With the Ganymede release, the Eclipse Update Manager has been replaced
by the Equinox/p2 provisioning framework. Author Nathan Good gives a high-level overview of the
framework, and discover its benefits for users and update site builders.
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Articles |
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24 Nov 2009 |
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Build a Twitter Web application
Learn how to create a Twitter-enabled Web 2.0-style application using Django, jQuery,
and the python-twitter wrapper that you can easily use and plug in to your own Django
project. With this application, you'll be able to see recent tweets, post updates, and show
your friends and followers.
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Articles |
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24 Nov 2009 |
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Explore refactoring functions in Eclipse JDT
This article describes the various refactorings available in Eclipse
Java Development Tools (JDT), including what each refactoring does, when to
use it, and how to use it. It also explores the refactoring scripts
functionality in Eclipse that allows library developers to share refactorings
of their code with their clients.
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Articles |
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24 Nov 2009 |
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Total security in a PostgreSQL database
Database security is the single biggest concern with today's Web-based
applications. Without control, you risk exposing sensitive information about
your company or, worse yet, your valuable customers. In this article, learn
about security measures you can take to protect your PostgreSQL
database.
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Articles |
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17 Nov 2009 |
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Building OSGi applications with the Blueprint Container specification
The OSGi framework is becoming increasingly popular. It provides great mechanisms for developing modular and dynamic applications.
The recent OSGi Service Platform Release 4 V4.2 specifications
introduced the Blueprint Container specification. In this article, learn
how the Blueprint Container provides a simple programming model for creating
dynamic applications in the OSGi environment. Numerous examples help get you started with the Blueprint XML file
and the component XML definitions.
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Articles |
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17 Nov 2009 |
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A tiny cloud in Android
Cloud computing minimally requires two components: the client software that runs
on the portable device and the server software that normally runs on a network server.
This article proposes creating an Android-based service that emulates a network server
that enhances the value of the local machine in unique and unexpected ways. Put a tiny
cloud in your Android handset and experience the usefulness of a local Web server.
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Articles |
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17 Nov 2009 |
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Use Technology Explorer for IBM DB2 to manage user and group
authentication for DB2 for Linux, UNIX, and Windows
Learn how to use the Technology Explorer (TE) for IBM DB2(R) to control
user and group authentication to DB2 through the use of a security plug-in
called db2auth. The plug-in uses a DB2 database for storing authentication
information instead of an external authentication repository, such as an
operating system or Kerberos. The plug-in allows for a smoother migration from other
database software such as MySQL, which also stores authentication information
within the database. This article also describes how the support in TE for the
db2auth plug-in was implemented. [2009 Nov 13: Updated to show Linux support.
--Ed.]
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Articles |
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13 Nov 2009 |
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Validating XML in PHP
PHP developers commonly require the services of an Extensible Markup Language (XML) parser in their code. Along these lines, they frequently find it necessary to validate XML input. Fortunately, you can easily accomplish this in PHP. This article shows you how to validate XML documents within PHP and determine the cause of validation failures.
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Articles |
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10 Nov 2009 |
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A performance benchmark method for comparing open source Java application servers
Various businesses are increasingly using open source Java application
servers. There are lots of them available to choose from, but how do you make
the right decision? In this article, learn about
a performance benchmark method for Java application servers, especially Java EE
5 compliant servers, that will help you choose the right solution.
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Articles |
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10 Nov 2009 |
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Successful open source communities
Communities are the backbone of open source software development, and a
successful community is the de-facto metric for a successful project. Learn how to build a
successful open source community around a viable project.
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Articles |
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10 Nov 2009 |
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Use Sun SPOTs as your build canary
Find out how to turn a new, open source wireless device -- Sun's Small Programmable Object Technology (SPOT) -- into a highly visible indicator of the health of a Continuous Integration build. Craig Caulfield introduces you to Sun SPOTs and the SPOT SDK, then shows how to use SPOTs as an early-warning system for CruiseControl builds.
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Articles |
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03 Nov 2009 |
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Leveraging pureXML in a Flex microblogging application, Part 3: Using pureXML Web services to publish microblog entries to an HTML page
The pureXML capabilities of IBM DB2 allow you to store XML natively in a database
without modification, while Adobe Flex applications can read XML directly and
populate Flex user interfaces. In this three-part article series, you will create
a microblogging application that takes advantage of pureXML, Web services, and
Adobe Flex; and even allows you to publish your microblogging updates on Twitter.
In Part 1 of the series, you learned about Web Services and how they are enabled
using DB2 pureXML as you created the microblog database and tested it. Part 2
tapped into Adobe Flex and ActionScript to create the user interface of your application. In this article, the final part of the series, you will learn how to use your pureXML Web Services to publish your microblog entries to an HTML page.
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Articles |
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03 Nov 2009 |
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Building XQuery-powered applications with PHP and Zorba
Zorba is an open-source, robust, and standards-compliant XQuery processor. The Zorba extension in PHP provides an API to Zorba functions from within PHP, and thereby allows developers to add sophisticated XQuery processing to their PHP/XML applications. Examine the Zorba PHP API in detail, and how to use it for a variety of purposes.
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Articles |
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03 Nov 2009 |
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Leveraging pureXML in a Flex microblogging application, Part 2: Building the application user interface with Flex
The pureXML capabilities of IBM DB2 allow you to store XML natively in a database
without modification, while Adobe Flex applications can read XML directly and
populate Flex user interfaces. In this three-part article series, you will create
a microblogging application that takes advantage of pureXML, Web services, and
Adobe Flex; and even allows you to publish your microblogging updates on Twitter.
In Part 1 of the series, you learned about Web Services and how they are enabled
using DB2 pureXML as you created the microblog database and tested it. In this
article, Part 2 of the series, you will tap into Adobe Flex and ActionScript to
create the user interface of the application.
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Articles |
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03 Nov 2009 |
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Leveraging pureXML in a Flex microblogging application, Part 1: Enabling Web services with DB2 pureXML
The pureXML capabilities of IBM DB2 allow you to store XML natively in a database without modification, while Adobe Flex applications can read XML directly and populate Flex user interfaces. In this three-part article series, you will create a microblogging application that takes advantage of pureXML, Web services, and Adobe Flex; and even allows you to publish your microblogging updates on Twitter.
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Articles |
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03 Nov 2009 |
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Java Web services: Introducing Metro
The Metro Web service stack provides a comprehensive solution for accessing and implementing Web services. It's based on the reference implementations of the JAXB 2.x and JAX-WS 2.x Java standards, with added components to support WS-* SOAP extension technologies and actual Web service deployment. This article continues Dennis Sosnoski's Java Web services column series with a look at the basic principles of Metro client and server development.
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Articles |
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03 Nov 2009 |
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Patching in Eclipse Galileo
Eclipse Galileo includes new features for applying patches, including the ability
to copy a patch to the clipboard and paste it directly into the Project Explorer.
This article introduces this and provides an overview of the method for
creating and applying patches, and includes an overview of the patch format used by Eclipse.
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Articles |
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03 Nov 2009 |
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Introduction to the eSWT mobile extension, Part 2: Use advanced controls for your mobile applications
As mobile platforms become increasingly sophisticated, the demand for
mobile computing will increase. In this "Introduction to the eSWT mobile extension" series, learn about the embedded
Standard Widget Toolkit (eSWT). You can use eSWT to develop native-looking
Java applications for a variety of mobile phones. In this article, learn how to
use more of the mobile controls: MobileShell, SortedList, HyperLink,
TextExtension, and TaskTip.
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Articles |
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03 Nov 2009 |
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Using Spring and Hibernate with WebSphere Application Server
If you're considering using Spring or Hibernate with IBM WebSphere
Application Server, this article explains how to configure these frameworks
for various scenarios with WebSphere Application Server. This article is not
an exhaustive review of either framework, but a critical reference to help you
successfully implement such scenarios. (Updated for Spring Framework 2.5 and
WebSphere Application Server V7.)
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Articles |
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01 Nov 2009 |
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Create and implement an XPCOM component for the Firefox browser
Learn how to create, develop, and test
a Cross-Platform Component Object Model (XPCOM) component that can be used by
the Firefox browser as an extension of an
application. Sample code provided with the example used in the article gives
you a quick start for developing your component for Firefox.
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Articles |
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27 Oct 2009 |
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Implement access control with Agavi
Agavi is an open-source, flexible, and scalable framework for application development. One of its key features is a full-featured API for user authentication and role-based access control. Examine this API in detail, and see how to add sophisticated application-level privilege management and manipulation to a Web application.
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Articles |
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27 Oct 2009 |
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Joda-Time
No enterprise application can escape time. Applications need to know
what time it is and what time it's going to be, and sometimes they must calculate the path
between the two. Using the JDK to do this job can be painful and tedious. Enter Joda-Time, an easy-to-use open source date/time library for the Java platform. As
you'll see in this article, Joda-Time eases the pain and tedium of manipulating
dates and time.
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Articles |
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27 Oct 2009 |
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Introduction to MVC programming with Agavi, Part 3: Add authentication and administrative functions with Agavi
Continue to build the Web Automobile Sales Platform by adding the ability to add, delete, and update the automobile records in Part 3 of a five-part series. You will also see how to separate user functions from administrative functions with authentication.
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Articles |
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27 Oct 2009 |
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Introduction to MVC programming with Agavi, Part 4: Create an Agavi search engine with multiple output types including XML, RSS, or SOAP
Implement a simple search engine and add support for multiple output types such as XML, RSS, or SOAP for your sample Agavi program in Part 4. This five-part series is for the PHP developer interested in Agavi, a open-source, flexible, and scalable framework.
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Articles |
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27 Oct 2009 |
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Introduction to MVC programming with Agavi, Part 5: Add paging, file uploads, and custom input validators to your Agavi application
This is the final article in a five-part series written for the PHP developer interested in learning about an open-source, flexible, and scalable framework called Agavi. You'll learn to support file uploads, store user data in sessions, integrate third-party libraries and create custom input validators for your Agavi application.
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Articles |
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27 Oct 2009 |
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Introduction to MVC programming with Agavi, Part 2: Add forms and database support with Agavi and Doctrine
Work with the scalable, open-source Agavi framework to create an input form, use Doctrine to auto-generate the data models for the project, and integrate these models into the Agavi project in Part 2 of this five-part series.
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Articles |
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27 Oct 2009 |
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Introduction to MVC Programming with Agavi, Part 1: Open a whole new world with Agavi
This is the first of a five-part series of articles written for the PHP developer interested in learning about an open-source, flexible, and scalable framework called Agavi. In this first article, you walk through the installation of the framework and the other required components, get an overview of Agavi and its functions, and create your first Web application.
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Articles |
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27 Oct 2009 |
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Examine PHP V5.3.0 features under the microscope
As the popular PHP language continues to evolve, many new features enhance
its object-oriented aspects. In this article, PHP V5.3 examples illustrate late static binding,
namespace support, class method overloading, and variable parsing and heredoc support.
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Articles |
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27 Oct 2009 |
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Eclipse and Amazon Web Service (AWS)
Learn how to use the Amazon Web Services toolkit for Eclipse. This demo shows you how to create a simple Java Web application, hello world, and deploy it to the cloud. Eclipse installed and setup. You will also need to have an Amazon account.
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Demos |
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22 Oct 2009 |
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Configuring Kerberos authentication in WebSphere Application Server Community
Edition
Kerberos authentication is not currently supported in WebSphere
Application Server Community Edition. In this article, we highlight how you
can leverage the IBM Java Platform provided Kerberos implementation to perform
Kerberos authentication in WebSphere Application Server Community Edition.
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Articles |
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21 Oct 2009 |
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The busy Java developer's guide to Scala: Updating Twitter, with Scitter
The Scitter client library is almost ready to be released into the
wild, but it needs a few finishing touches. In this installment of The
busy Java developer's guide to Scala, Ted Neward shows you how to incorporate update, show, and delete functionality into the Scala-based library for accessing Twitter.
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Articles |
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20 Oct 2009 |
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Web application security: Testing for vulnerabilities
The increasing reliance on data-driven Web sites has caused an incline in
the number of attacks launched against them. As a developer, understanding how a
site can be attacked is paramount to making it secure.
Discover some of the more common attacks, and learn about the tools you can use to
spot them.
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Articles |
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20 Oct 2009 |
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Using the SBLIM CIM Client efficiently
We all know that templates can save time. In this article, learn how to produce a code skeleton based on
predefined templates using the SBLIM Common Information Model (CIM) Client library.
With CIM, most client-side
applications serve as the CIM clients. They use standard CIM XML-over-HTTP protocol for
communication with the CIM server. It's
inconvenient to encode and decode CIM-XML statements directly.
Fortunately, the SBLIM CIM Client gives you standard APIs that can
facilitate CIM client development. This article also provides tips on how to
add code to your skeleton produced from the templates.
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Articles |
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20 Oct 2009 |
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Virtual appliances and the Open Virtualization Format
Not only has virtualization advanced the state of the art in maximizing
server efficiency, it has also opened the door to new technologies that were not possible before. One of these technologies is the virtual appliance, which
fundamentally changes the way software is delivered, configured, and managed.
But the power behind virtual appliances lies in the ability to freely share
them among different hypervisors. Learn the ideas and benefits behind virtual
appliances, and discover a standard solution for virtual appliance
interoperability called the Open Virtualization Format.
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Articles |
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20 Oct 2009 |
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The Simple Cloud API
The Simple Cloud API provides a common API to a variety of cloud
services. A collaborative effort by Zend, GoGrid, IBM, Microsoft, Nirvanix and
Rackspace, the API allows you to write portable code that can interoperate
with multiple cloud vendors. Best of all, the API allows you to use services
specific to a particular vendor as necessary.
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Articles |
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20 Oct 2009 |
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High-performance Web development with Google Web Toolkit and Eclipse
Galileo
By now, you have probably heard of Google Web Toolkit (GWT). You know
that it lets you write your Web applications in the Java programming language that is compiled into
JavaScript to run in Web browsers. This lets you be more productive by taking
advantage of Java's static typing and great tools like Eclipse. You have may
seen some of the useful and stylish widgets built on top of GWT. What
you may not know is that GWT lets you create high-performance Web
applications. In this article, we look at how you can use the Google
Plug-in with Eclipse Galileo to tap into the performance features of GWT, such
as compiler optimizations, deferred binding, and Ajax optimizations. Developer
performance is still an important part of GWT, so along the way, we will also
show you how tweak the Google Plug-in for Eclipse to increase your
productivity.
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Articles |
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20 Oct 2009 |
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WebSphere migrations: Migrate from JBoss v4.x to IBM WebSphere Application Server Community Edition v2.x
Leverage the superior support and architecture of WebSphere Application Server and Apache Geronimo by migrating applications running on JBoss Application Server.
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Articles |
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14 Oct 2009 |
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Using Apache Pivot to build an iTunes search client
Apache Pivot is an open source platform for building rich internet applications (RIAs) in a Java environment. It combines the enhanced productivity and usability features of a modern RIA toolkit with the robustness of the industry-standard Java platform. Apache Pivot applications take advantage of WTKX, an XML-based language for user interface design, which makes the application's output easy to visualize. In this tutorial, you will follow the implementation of a simple but practical Pivot application that allows a user to execute searches against the contents of the iTunes Store.
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Tutorial |
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13 Oct 2009 |
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Cloud computing with PHP, Part 2: Using Amazon EC2 with the Zend Framework
The Zend Framework contains several classes that make using cloud-based
storage services easy. Part 1 of this "Cloud computing with PHP" series looks at using Zend classes with
Amazon's S3 cloud storage service. This article covers the Zend classes that
make it easy to work with virtual machines in Amazon's Elastic Compute Cloud
(EC2).
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Articles |
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13 Oct 2009 |
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| |
Design and develop SCA components using the Spring Framework, Part
1: The trifecta: Spring, SCA, and Apache Tuscany
In this "Design and develop SCA components using the Spring Framework"
series, learn how Service Component Architecture (SCA) and the Spring Framework effectively combine to build distributed
service applications. This first article outlines the benefits of combining
SCA and Spring. Learn how to design and develop your SCA components using
the Spring Framework, how to expose Spring beans as an SCA service, and how to access SCA
services and properties within your Spring applications. The example in this
article use the Apache Tuscany SCA Java technology runtime.
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Articles |
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06 Oct 2009 |
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Spread the word: Enterprise blogging, MetaWeblog, and XML-RPC
Today's blogs are used for much more than the traditional personal journal: They
have matured to become an ideal Web publishing platform. Within the enterprise, blogs are often a central conduit for corporate, development, and marketing communications, which makes selecting open blogging software that conforms to standard XML APIs essential. Discover one such too -- MetaWeblog, a widely used blogging API -- and learn how to use its API to write your own blogging tools.
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Articles |
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06 Oct 2009 |
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memcached and Grails, Part 2: Integrating memcached into Grails
James Goodwill completes his two-part introduction to integrating
memcached and Grails with a sample Grails application and a Java-based memcached
client. Learn how to integrate Spymemcached into your Grails-built, contact-management
application, then try caching individual request results with memcached. You'll also
use the memcached client commands introduced in Part 1 to test the effectiveness of your new cache.
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Articles |
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06 Oct 2009 |
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Saving money with open source, Part 3: The OpenChange solution offers great promise
In today's economic climate, everyone is looking for ways to reduce expenses. In the IT sector, one way to cut costs is by turning to open
source alternatives instead of using expensive licensed products. This last part
of our series explores OpenChange, which is designed to be used as an Exchange
groupware server. E-mail is probably the backbone of your business; When the
e-mail servers go down, everything can quickly grind to a halt. In this article,
learn about the OpenChange e-mail server and whether it is ready for prime time.
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Articles |
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29 Sep 2009 |
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Monitor home energy with AMEE
Electricity is invisible. To understand how people use it, you need to make it visible. This tutorial will show you how easy it is to build a Web-based energy monitoring system yourself, using a Current Cost real-time energy monitor and AMEE, a neutral Web-based API for energy data, combined with some XML, Ruby, Rails, and Ajax.
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Tutorial |
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29 Sep 2009 |
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Calculate your computer's carbon footprint using AMEE
As the use of IT continues to increase, Information
and Communication Technology (ICT) systems will make up a large proportion of
CO2 emissions. ICT providers are trying to find ways to reduce these emissions
through efficiency, cloud computing, or other approaches, but the monitoring
of such systems is also an essential requirement. The Avoiding Mass
Extinctions Engine (AMEE) platform provides a
standard framework for tracking carbon emissions and implements a
variety of calculation methodologies. Investigate some
approaches to calculating ICT emissions that are possible using the AMEE
platform, and check out Ruby scripts that enable the automatic
monitoring of such systems.
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Articles |
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29 Sep 2009 |
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Top Open source zone articles of the past decade
Check out which Open source zone articles developerWorks readers found most
interesting in the past 10 years. And get to know your Open source zone editor
a little bit, too.
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Articles |
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23 Sep 2009 |
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Cloud computing with PHP, Part 1: Using Amazon S3 with the Zend Framework
The Zend Framework contains several classes that make using cloud-based
storage services easy. This article illustrates how to use those classes with
Amazon's S3 cloud storage service.
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Articles |
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22 Sep 2009 |
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Requirements for rule engines
Business software systems typically handle complex repetitive tasks, such as processing
insurance claims or routing packages for delivery. These systems are encoded with the
specific business logic to accomplish these tasks, but must be flexible to change. To simplify
development and permit rapid deployment of changes, rule engines have been
created to execute the business rules independently of the procedural code, allowing
for changes to rules without modification of underlying code. Discover the tools and
techniques for requirement capture, modeling, and testing of business rules.
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Articles |
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22 Sep 2009 |
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Your developerWorks open source editor is now on Twitter
Your once Twitter-resistant developerWorks open source editor is now on
Twitter. And we can both benefit from that. Find out how.
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Articles |
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22 Sep 2009 |
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Integrate your PHP application with Google Contacts
The Google Contacts Data API provides a powerful, client-neutral API to read and modify a user's private Gmail contact information. Learn to retrieve, add, delete, and modify contacts through a custom PHP application with this API in an application context.
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Articles |
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22 Sep 2009 |
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Introducing Quercus, a Java-based PHP framework
Quercus is a new approach to authoring Web services and
applications using a mixture of Java and PHP. With the Quercus framework, Java and PHP are integrated with each
other, thus allowing you to conveniently incorporate versatile Java libraries
like Spring and Hibernate into applications. This article provides a brief
introduction of the framework along with some code samples. Explore the
features and advantages of the framework using a simple HelloWorld sample. And
finally, understand the framework architecture and
look at a real world example in more detail.
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Articles |
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22 Sep 2009 |
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The Clojure programming language
Lisp is a programming language known for its expressiveness
and power, but it was often thought of as not being well suited for general
use. That has all changed with Clojure, a Lisp dialect that runs on the Java
platform. Now you can harness the power of Lisp anywhere that you have a Java
Virtual Machine handy. In this article, you will see how to get started with
Clojure, and learn some of its syntax, as you take advantage of the Clojure
plug-in for Eclipse to help you along the way.
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Articles |
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22 Sep 2009 |
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Exploring Drupal V6, Part 3: Building a Drupal module
You've learned the basics of Drupal V6 and even added modules to a Drupal site. In this
final installment in the "Exploring Drupal V6" series, learn how to write and deploy a custom module to create a
novel content type.
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Articles |
|
15 Sep 2009 |
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| |
Introduction to the eSWT mobile extension, Part 1: Use simple widgets to quickly build mobile applications
As mobile platforms become increasingly sophisticated, the demand for
mobile computing will increase. In this series, learn about the embedded Standard Widget Toolkit
(eSWT). You can use eSWT to develop native-looking Java applications for a
variety of mobile phones. This article explores how to use eSWT mobile controls.
Code examples walk you through using five of the classes in the eSWT mobile
extension.
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Articles |
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15 Sep 2009 |
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| |
Finding the way through the semantic Web with HBase
The Hadoop Database (HBase) is well suited for creating a semantic Web and for extracting existing
or computed knowledge. Learn how to represent RDF/XML assertions in an HBase database
for scientific articles, and discover how HBase and Bigtable are promoting a new approach
to storing and processing data.
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Articles |
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15 Sep 2009 |
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Java Web services: JAXB and JAX-WS in Axis2
Apache Axis2 supports a range of data-binding technologies, including the official Java standard, JAXB 2.x. Axis2 also supports the Java standard for Web service configuration, JAX-WS 2.x, as an alternative to its own custom configuration technique. Dennis Sosnoski continues his Java Web services column series by demonstrating how you can use each of these Java standards with Axis2 and discussing some of the limitations of Axis2's current support for them.
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Articles |
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15 Sep 2009 |
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Mastering Grails: Creating a custom plug-in
In this Mastering Grails installment, Scott Davis shows you how to create your own Grails plug-in. Once you see how effortless it is to create a plug-in, you'll understand why more than 250 Grails plug-ins are available now, with new ones being added all the time.
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Articles |
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15 Sep 2009 |
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memcached and Grails, Part 1: Installing and using memcached
In this first half of a two-part article focusing on memcached and Grails,
author James Goodwill introduces you to the open source caching solution memcached.
Topics covered in this article include installation, configuration, memcached client
commands, and evaluating the effectiveness of your cache. Unlike articles about using
memcached with a language-specific client, this one focuses on direct interaction with
the memcached server. The goal is to give you the tools you need to monitor your
instance of memcached as well as to prepare you for the second half of the article, in which you will integrate memcached into a Grails application.
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Articles |
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15 Sep 2009 |
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| |
Exploring Drupal V6, Part 2: Extending Drupal with modules
Once upon a time -- say, 10 years ago -- operating a Web site was
something of a novelty. Today, a Web site is not only de rigueur, it's an essential
component of any endeavor. Learn how to use Drupal's modules to build, customize,
and secure your site.
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Articles |
|
08 Sep 2009 |
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Introducing Apache Mahout
Once the exclusive domain of academics and corporations with large research budgets, intelligent applications that learn from data and user input are becoming more common. The need for machine-learning techniques like clustering, collaborative filtering, and categorization has never been greater, be it for finding commonalities among large groups of people or automatically tagging large volumes of Web content. The Apache Mahout project aims to make building intelligent applications easier and faster. Mahout co-founder Grant Ingersoll introduces the basic concepts of machine learning and then demonstrates how to use Mahout to cluster documents, make recommendations, and organize content.
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Articles |
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08 Sep 2009 |
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Using the Technorati API
Technorati is a blog cataloging service that enables users to search virtually the entire blogosphere for articles of interest. Like most entries in the Web 2.0 domain, Technorati provides an API to automate much of its functionality. Also like most entries in the Web 2.0 domain, that API is provided as a REST service. In this article, work with examples and learn to get the most out of the Technorati API.
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Articles |
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08 Sep 2009 |
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Easy navigation in Eclipse Galileo
Eclipse Galileo introduces several features that allow you to quickly navigate your
Java projects. When combined with existing features, you can get around quickly even in
the largest projects.
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Articles |
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08 Sep 2009 |
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Conversing through the Internet with cURL and libcurl
cURL is a command-line tool that speaks a number of protocols for file
transfer, including HTTP, FTP, Secure Copy (SCP), Telnet, and others. But in addition to
conversing with endpoints over the Internet from the command line, you can
also write simple to complex programs using libcurl to automate application-layer protocol
tasks. This article introduces the cURL command-line tool, then shows you how to build an HTTP client in C and Python using libcurl.
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Articles |
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08 Sep 2009 |
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Top 10 tips for writing successful Software as a Service
Discover 10 essential tips for creating Software as a Service (SaaS) applications
that come in on time and under budget, yielding a positive and preferable return on
investment.
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Articles |
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01 Sep 2009 |
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Saving money with open source, Part 2: Tap into the power of OpenOffice
In today's economic climate, everyone is looking for ways to reduce
expenses. In the IT sector, one way to cut costs is by turning to open
source alternatives instead of using expensive licensed products. In this article,
learn about the OpenOffice office productivity software. Explore how it has matured, its limitations,
and the implications for making the move to this productivity suite.
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Articles |
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01 Sep 2009 |
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Plotting scientific data with Eclipse BIRT
BIRT was made for business reports, but that doesn't mean you can't use it for
creating plots of scientific data. Learn how to use BIRT for scientific purposes by
creating two plots: one of the magnitude of a variable star and one of the number of
sunspots per year.
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Articles |
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01 Sep 2009 |
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Saving money with open source, Part 1: Use the Ubuntu operating system
In today's economic climate, everyone is looking for a way to reduce their
expenses. In the IT sector, one way to reduce expenses is by turning to open
source alternatives instead of using expensive licensed products. In this series, learn
about three open source alternatives: Ubuntu for the operating system, OpenOffice
for the office application suite, and OpenChange for the Exchange groupware
server. This first article explores the Ubuntu Linux operating system, and how it
can help you save money by providing an excellent alternative on the desktop.
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Articles |
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25 Aug 2009 |
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Implementing composite keys with JPA and Hibernate
Nowadays, with the widespread use and deployment of Object-Relational Mapping (ORM) tools, you don't generally have to think too hard about such arcane issues as composite keys. Normally, the choice of key design can be a simple integer, and this can be left with confidence to the tooling. Occasionally, you come across a situation where a composite key is required, and you need a strategy for this. This tip shows you how to implement composite keys with JPA and Hibernate.
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Articles |
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25 Aug 2009 |
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Google App Engine for Java: Part 3: Persistence and relationships
Data persistence is a cornerstone of scalable application delivery in
enterprise environments. In this final article of his series introducing Google App
Engine for Java, Rick Hightower takes on the challenges of App Engine's current
Java-based persistence framework. Learn the nuts and bolts of why Java persistence in
the current preview release isn't quite ready for prime time, while also getting a
working demonstration of what you can do to persist data in App Engine for Java
applications. Note that you will need to have the contact-management application from
Part 2 up and running as you learn how to use the JDO API to persist, query, update, and delete Contact objects.
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Articles |
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25 Aug 2009 |
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Use the best open source client-side framework for cloud computing
Discover the pros and cons of using Adobe Flex and
OpenLaszlo -- two leading client-side RIA development languages that are
particularly useful for building Software as a Service applications for the
cloud.
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Articles |
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18 Aug 2009 |
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Using Apache Lucene to search text
In this article, learn about Apache Lucene, the high-performance, full-featured
text search-engine library. Explore the Lucene
architecture and its core APIs. Learn to use Lucene for cross-platform full-text searching, indexing, displaying results, and extending a search.
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Articles |
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18 Aug 2009 |
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Faster Java coding in Eclipse Galileo
Learn how to use the new toString()
code-generation ability in Eclipse Galileo along with
hashCode(), equals(),
and setter/getter generation to cut down on the amount of work that goes into
building the foundation of a Java class.
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Articles |
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18 Aug 2009 |
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Thoughts from OSCON 2009: Open government, concurrency
The O'Reilly Open Source Convention (OSCON) is nothing if not a place
to collect one's deeper thoughts around software development. The 2009
convention offered more than its share of inspiration, but David Mertz
whittled the schedule down and focused on two very different but important
areas: open government and concurrency.
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Articles |
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12 Aug 2009 |
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Exploring Drupal V6, Part 1: Introduction
Need a Web site? Don't have lots of money for development? Say no more.
Drupal is an open source solution that runs everywhere. It has impressive features and
its latest incarnation, Drupal V6, is a joy to use. Here's an introduction.
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Articles |
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11 Aug 2009 |
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Google App Engine for Java: Part 1: Rev it up!
Remember when Google App Engine was just for Pythonistas? Those
were some dark days. Google Inc. opened up its cloud-computing platform to
Java developers in April 2009. In this three-part article series, Java technology author and
trainer Rick Hightower gets you started with this reliable, robust, and fun platform
for Java-based development. In this article, you'll get an overview of why Google App
Engine for Java could
be the deployment platform for your next highly scalable killer app, then start using
the Google Plugin for Eclipse to build two example apps: one based on Google Web Toolkit (GWT) and one based on the Java Servlet API. You'll learn for yourself what a difference Google App
Engine for Java makes, both in building out an application from scratch and in deploying it to the tune of up to five million views. (And that's just the free version.)
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Articles |
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11 Aug 2009 |
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Tip: An even simpler API: tight XHTML and meaningful attributes
Occasionally, a Web developer is required to serve data to two or more distinct
audiences -- one with a complete package of information and others with selected
extracts of the total package. Learn how a Web page designed for a general audience reading
the page as HTML can also provide data to another audience reading the same page as XML.
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Articles |
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11 Aug 2009 |
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The Blue programming language
Languages are the means by which we express our desires to computers systems,
and, as far as I'm concerned, there's no such thing as too many. One unique
language, called Blue, is an open source object-oriented language that is
multipurpose and intuitive to use. This tip provides the foundation
for Blue and shows you how to build simple networking applications.
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Articles |
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11 Aug 2009 |
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Google App Engine for Java: Part 2: Building the killer app
The whole point of a cloud platform like Google App Engine for Java is
in being able to imagine, build, and deploy professional-quality killer apps that
scale -- without breaking the bank or driving yourself insane. In this second part of
his three-part introduction to Google App Engine for Java, Rick Hightower takes you
beyond the ready-made examples of Part 1 with a step-by-step guide to writing and
deploying a simple contact-management application using Google App Engine for Java.
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Articles |
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11 Aug 2009 |
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Java Web services: Granular use of WS-Security
WS-Security for SOAP Web services doesn't have to be an all-or-nothing proposition. By configuring WS-Security at the operation or message level, you can apply an appropriate degree of protection to every exchange, reducing or eliminating the WS-Security overhead for operations that don't need full protection. Dennis Sosnoski continues his Java Web services series with a look at granular WS-Security in Web Services Description Language (WSDL) using Apache Axis2 and Rampart.
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Articles |
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04 Aug 2009 |
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Git for Subversion users, Part 1: Getting started
Distributed version control systems (DVCSs) offer a number of advantages
over centralized VCSs, and for Subversion users looking to explore this model,
Git is a great place to start. Using Subversion as a baseline, this first of
two articles shows how to install Git, set up a remote repository, and begin
using basic Git commands.
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Articles |
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04 Aug 2009 |
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Using the Twitter Search API
Twitter is undoubtedly one of the most recent and successful examples of social networking to appear on the World Wide Web. Twitter also has its own search engine, which enables users to search for "tweets" by keyword or category, with an API to facilitate programmatic searches, act as a REST service, and return searches in Atom format. Discover the basics of using the Twitter Search API.
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Articles |
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04 Aug 2009 |
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Creating an Atom feed in PHP
Atom is an Extensible Markup Language (XML) specification that identifies information contained in a Web site. Using Atom, Web developers produce feeds that enable other Web developers (or consumers who use feed readers) to quickly locate and view information of interest on a remote site. Think of it as a Web site's index, available to anyone who wants it. Using PHP, a popular language of choice for most host providers, a Web developer can easily produce an Atom feed that can then be made available to the various feed readers and other Web developers. The ultimate result is a state-of-the-art information solution that enables the Web content to reach a much wider audience.
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Articles |
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28 Jul 2009 |
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Build Wikipedia query forms with semantic technology
By providing open access to increasing amounts of Linked Data, public SPARQL endpoints boost the growth of the Semantic Web by providing great data for you to use in your applications. As with many other data-driven Web sites out there, you can create a Web page by sending a query to these endpoints and then wrapping the results in HTML tags; the big difference for SPARQL endpoints is the public availability of this new data for your applications. With simple CGI scripting, get data from two different SPARQL endpoints to build applications that answer your user's questions about actors shared between two directors and which musicians have released which albums.
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Articles |
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21 Jul 2009 |
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Mastering Grails: Understanding plug-ins
In this Mastering Grails installment, Scott Davis introduces you to the world of Grails plug-ins. Adding whole areas of new functionality to your applications couldn't be easier. You'll learn how plug-ins do their magic, and you'll use a plug-in to implement powerful search capabilities in the Blogito application.
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Articles |
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21 Jul 2009 |
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Build virtual appliances using the OVF Toolkit
The Open Virtualization Format (OVF) is an open standard for packaging
and distributing virtual appliances (or software) that is to be run in virtual
machines. The standard describes an "open, secure, portable, efficient and
extensible format for the packaging and distribution of software to be run in
virtual machines"; the standard is designed so that it is not tied to any
particular hypervisor or processor architecture. In this article, the authors
describe the OVF standard and the OVF Toolkit developed by IBM.
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Articles |
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16 Jul 2009 |
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Flex 4 features for creating Software as a Service
With regard to enterprise-level development, the Adobe Flex SDK
has undergone such significant improvements that it is hard to fathom that
it's still the same product. Explore new features and functionality for
creating Software as a Service (SaaS) RIAs using the open source Flex 4 beta
SDK.
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Articles |
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14 Jul 2009 |
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Create an ooRexx build environment on Linux KVM
Construct an on-demand software build service using ooRexx that uses the
Linux Kernel Virtual Machine (KVM) for better performance. KVM acts as the
host for the guest operating systems that build the target software for the
user. The Apache Web server controls the builds and stores the results for
later retrieval by the user. Learn how to set up the build server and create
guests, customize build requests, and organize and access build
results.
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Articles |
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14 Jul 2009 |
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Using Flex SDK with Mate and PHP
Mate is a lightweight event-driven framework that enables you to build
user interfaces (UIs) and services in a Model-View-Controller (MVC) pattern. Learn how to use Eclipse PHP development tools (PDT) and the Flex software development kit (SDK) together to build an application using the Mate framework.
This article expands on the existing Mate documentation, as it focuses on using Eclipse PDT as the tool.
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Articles |
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14 Jul 2009 |
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Download Eclipse Galileo
Are you a Java EE developer? Download Eclipse open source software bundles for
free from developerWorks, including the Callisto, Ganymede, and Galileo Simultaneous Release projects, and get started developing with Eclipse frameworks today.
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13 Jul 2009 |
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Globalize your Eclipse RCP application
The Eclipse Rich Client Platform (RCP) is gaining wide acceptance in software
development. For multinational enterprises, delivering software that supports
multiple languages is increasingly important to worldwide customers. In this
article, learn how to globalize the user interface (UI) elements in
an RCP application, including the window, menu, toolbar, dialog, welcome page, splash
screen, and standard Eclipse UI elements. A sample Hello World application walks you through the
process.
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Articles |
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07 Jul 2009 |
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Java Web services: The high cost of (WS-)Security
WS-Security offers powerful features for securing Web service
applications, and for many applications these features are essential. But these
features come at a high cost in terms of performance and message overhead. Dennis
Sosnoski continues his Java Web services column series with a look at how using WS-Security or WS-SecureConversation affects Axis2 performance, and he discusses when the simpler (and better performing) alternative of HTTPS-secured connections is a more appropriate choice.
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Articles |
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07 Jul 2009 |
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Producing documentation and reusing information in XML, Part 3: Creating multi-target XML documents
XML is an optimal format for writing documentation that you can use with many different documentation software packages and production environments. In this third article in the series, discover how to create single-source documents that can produce output in a variety of different output formats.
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Articles |
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07 Jul 2009 |
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Producing documentation and reusing information in XML, Part 1: Document publishing using XML
XML provides a way to identify data items and subcomponents within any structured data set, but has its roots in documentation development and production. Robust, open standards for XML document markup and a rich set of freely available tools for XML document parsing and format conversion make it easy to install and configure a complete documentation development and formatting environment on any UNIX or Linux system.
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Articles |
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07 Jul 2009 |
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Dynamically generate OpenOffice documents on the client side with XPCOM
With the Cross Platform Component Object Model
(XPCOM) framework from Mozilla, you can dynamically export existing XML
content into an OpenOffice document. The process also works for any other
type of content supported by the transformation mechanism, such as
XSLT. In this article, learn about
a portable and cost-effective alternative to server-side
solutions.
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Articles |
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07 Jul 2009 |
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Scala on your phone
The Android operating system provides a powerful, open platform for
mobile development. It leverages the power of the Java programming language
and the Eclipse tools platform. Now you can add the Scala programming language
to that mix. In this article, you will see how you can use Scala as the
primary development language on Android, allowing you to write mobile
applications using a more expressive but also more type-safe programming
language.
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Articles |
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30 Jun 2009 |
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High-performance concurrent communication development in UNIX using the ACE library framework
The ACE open source toolkit helps developers create robust, portable multithreading
applications. Take a peek into some of the ways you can create applications that use
ACE threads.
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Articles |
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30 Jun 2009 |
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PHP object orientation: Separating concerns
Separation of concerns is a concept in object-oriented (OO) software
design that allows you to build more-modular applications. Modular
applications are easier to maintain and add new features to. PHP's OO language
features allow you to apply design concepts to build more robust, maintainable
applications.
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Articles |
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30 Jun 2009 |
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The new OpenNTF Alliance
This article describes the governance and IP model of the new OpenNTF Alliance. It also explains how consumers can find code on OpenNTF and how producers can contribute code. Last but not least, the article outlines some ideas for OpenNTF improvements and extensions.
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Articles |
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29 Jun 2009 |
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An Eclipse Galileo flyby
The Eclipse Galileo release of 33 major projects showcases the diversity
and innovation going on inside the Eclipse ecosystem. Get an overview of
several Galileo projects, along with resources to find out more
information.
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Articles |
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26 Jun 2009 |
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Create better namespaces in PHP
PHP V5.3 introduces the ability to provide namespaces to your PHP
classes, constants, and functions. Using namespaces allows you to avoid naming
collisions and provide context for your PHP code. These tips provide a few guidelines for building your namespaces so that you get the most out of them.
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Articles |
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23 Jun 2009 |
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Weaving a better Web page
A Cascading Style Sheets (CSS) framework expedites and simplifies the
design and development of Web pages. Moreover, a CSS framework produces more
standardized results in all browsers. Here's a look at two CSS frameworks, each
with a unique philosophy.
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Articles |
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23 Jun 2009 |
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Working with XML on Android
Android is a modern, open source operating system and SDK for mobile devices. With it you can create powerful mobile applications. This becomes even more attractive when your applications can access Web services, which means you need to speak the language of the Web: XML. In this article, you will see different options for working with XML on Android and how to use them to build your own Android applications.
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Articles |
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23 Jun 2009 |
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Cultured Perl: Perl and the Amazon cloud, Part 5
This five-part series walks you through building a simple photo-sharing
Web site using Perl and Apache to access Amazon's Simple Storage Service (S3)
and SimpleDB. In this final installment, examine the full mod_perl site's
templates, including one for indexing, three for uploading (general, S3 forms,
and URL additions), one for image and comment browsing, and one to browse
comments recursively for an image (or threading down).
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Articles |
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23 Jun 2009 |
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Practically Groovy: Metaprogramming with closures, ExpandoMetaClass, and categories
Enter into the world of metaprogramming, Groovy-style. The ability to add new
methods to classes dynamically at run time -- even Java classes, and even final Java
classes -- is incredibly powerful. Whether used for production code, unit tests, or anything in between, Groovy's metaprogramming capabilities should pique the curiosity of even the most jaded Java developer.
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Articles |
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23 Jun 2009 |
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Tapping into Android's sensors
Android, a rich platform for application development, has an attractive
set of user interface elements and data-management capabilities. Android also
offers a healthy array of interfacing options. In this article, learn how to
interact with Android's varied
sensor options to monitor your environment. Sample code shows you how to record audio on an Android
phone. Want to build your own baby monitor? Unlock your phone or a door with
your own voice activation? Learn how to leverage the hardware capabilities of an
Android-equipped device.
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Articles |
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16 Jun 2009 |
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Java Web services: Axis2 WS-Security signing and encryption
Get an introduction to the principles of public key cryptography, then see how WS-Security applies them for signing and encrypting SOAP messages using public-private key pairs in combination with secret keys. Dennis Sosnoski continues his Java Web services series with a discussion of WS-Security and WS-SecurityPolicy signing and encryption features, along with example code using Axis2 and Rampart.
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Articles |
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16 Jun 2009 |
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Introducing KDE 4 plasmoids
KDE 4 includes many exciting new technologies, including Plasma, a
feature that forms the desktop shell of KDE 4. See how to write simple
Plasma applets (known as "plasmoids") to greatly improve the
desktop experience and how to turn a plasmoid into a simple
memory monitor.
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Articles |
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14 Jun 2009 |
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Cultured Perl: Perl and the Amazon cloud, Part 4
This five-part series walks you through building a simple photo-sharing
Web site using Perl and Apache to access Amazon's Simple Storage Service (S3)
and SimpleDB. In this installment, examine the full mod_perl site's code base,
including how to configure the top level, what to do with the handlers, and
how to set up external dependencies.
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Articles |
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14 Jun 2009 |
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Cultured Perl: Perl and the Amazon cloud, Part 3
This five-part series walks you through building a simple photo-sharing
Web site using Perl and Apache to access Amazon's Simple Storage Service (S3)
and SimpleDB. In this installment, follow your site's interaction with
SimpleDB by learning how the URL creates a SimpleDB record for the uploaded
file. Also learn how to create, edit, and delete comments as SimpleDB records
on a photo for a particular user.
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Articles |
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14 Jun 2009 |
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Networking with Android
Android, a rich platform for application development, offers
an attractive set of user interface elements and data management capabilities.
It also has a healthy array of networking options for developing applications
that connect to the physical world. What would you
want to connect to? Perhaps you want to tell the world everything you're
doing using Twitter. Or maybe you want to be notified of
your turn at the local laundromat or deli counter. If you have an interest in
connecting Android to the world about you, read on.
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Articles |
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09 Jun 2009 |
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Mastering Grails: File uploads and Atom syndication
In this Mastering Grails installment, Scott Davis shows you how to upload files to your Grails application and set up an Atom syndication feed. With these last pieces in place, Blogito becomes a full-fledged blog server.
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Articles |
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09 Jun 2009 |
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Cook up Web sites fast with CakePHP, Part 5: Adding cache
CakePHP is a stable production-ready, rapid-development aid for building
Web sites in PHP. This "Cook up Web sites fast with CakePHP" series shows you
how to build an online product catalog using CakePHP.
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Articles |
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02 Jun 2009 |
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Cook up Web sites fast with CakePHP, Part 4: Use CakePHP's Session and Request Handler components
CakePHP is a stable production-ready, rapid-development aid for building Web
sites in PHP. This "Cook up Web sites fast with CakePHP" series shows you how to build
an online product catalog using CakePHP.
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Tutorial |
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02 Jun 2009 |
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Cook up Web sites fast with CakePHP, Part 2: Bake bigger and better with CakePHP
CakePHP is a stable production-ready, rapid-development aid for building
Web sites in PHP. This "Cook up Web sites fast with CakePHP" series shows you
how to build an online product catalog using CakePHP.
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Tutorial |
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02 Jun 2009 |
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| |
Cook up Web sites fast with CakePHP, Part 1: Getting started
CakePHP is a stable production-ready, rapid-development aid for building
Web sites in PHP. This "Cook up Web sites fast with CakePHP" series shows you
how to build an online product catalog using CakePHP.
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Tutorial |
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02 Jun 2009 |
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The busy Java developer's guide to Scala: Enhancing the Scitter library
Scala is fun to talk about in the abstract, but using it in a practical
way makes the difference between seeing it as a "toy" and using it on the job. In this
follow-up article to his introduction to Scitter, a Scala client library for accessing Twitter, Scala enthusiast Ted Neward offers a more interesting and useful set of features for the client library.
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Articles |
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02 Jun 2009 |
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Cook up Web sites fast with CakePHP, Part 3: Use Sanitize for your protection
CakePHP is a stable production-ready, rapid-development aid for building
Web sites in PHP. This "Cook up Web sites fast with CakePHP" series shows you
how to build an online product catalog using CakePHP.
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Articles |
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02 Jun 2009 |
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Doing more with the Django admin
The built-in administration console provided by Django is one of its biggest
selling points. What if you need to customize more than just the
look and feel and a couple of model fields? Find out how
to extend the existing admin application without ever modifying
the source.
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Articles |
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26 May 2009 |
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Install the GNU ARM toolchain under Linux
Many tools are available for programming various versions of ARM cores,
but one particularly popular set is the GNU ARM toolchain. Learn more about
embedded development using the ARM core, as well as how to install the GNU
tools and begin using them.
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Articles |
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20 May 2009 |
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Use command-line tools in PHP
Learn how to better integrate scripts with command-line tools. Emphasis is placed on using shell_exec(), exec(), passthru(), and system(); safely passing information to the command line; and safely retrieving information from it.
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Articles |
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19 May 2009 |
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Practically Groovy: Building, parsing, and slurping XML
Learn how easy it is to slice and dice XML using Groovy. In this installment of Practically
Groovy, author Scott Davis shows that whether you're creating XML with MarkupBuilder and StreamingMarkupBuilder, or parsing XML with XmlParser and XmlSlurper, Groovy offers a set of compelling tools for dealing with this ubiquitous data format.
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Articles |
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19 May 2009 |
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Better Django models
After graduating from the five-minute wiki to real-life applications, Django programmers
can easily create confusing, hard-to-maintain, or inefficient model classes. Learn how to
avoid common querying mistakes, use model managers to encapsulate complex queries,
and take advantage of the powerful new aggregation features available in Django V1.1.
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Articles |
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19 May 2009 |
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Introduction to Android development
Android is a complete operating environment based on the Linux V2.6
kernel. Initially, the deployment target for Android was the mobile-phone
arena, including
smart phones and lower-cost flip-phone devices. However,
Android's full range of computing services and rich functional support have
the
potential to extend beyond the mobile-phone
market. Android can be useful for other platforms and applications. In this
article, get an introduction to the Android platform and learn how to code
a basic Android application.
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Articles |
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12 May 2009 |
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3-D modeling with SketchUp and Eclipse, Part 2: Coding with the SketchUp scripting language
Scripts allow you to add automation, animation, and geometric computation to your
SketchUp designs. With the right code, SketchUp can become a rendering tool like Maya
or a mechanical design tool like AutoCAD. This article, the second in a two-part "3-D modeling with SketchUp and Eclipse" series,
describes a number of the basic classes used in SketchUp scripts and provides examples
of their usage. With these classes, you can construct any 3-D figure composed
of line segments and faces. Then you can configure the appearance of each face with colors
and images.
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Articles |
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12 May 2009 |
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An early look at what's coming in PHP V6
In this article, learn about the new PHP V6 features in detail. Learn
how it is easier to use, more secure, and more suitable
for internationalization. New features include improved support
for Unicode, clean-up of several functions, improved extensions, engine additions,
changes to OO functions, and PHP additions.
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Articles |
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05 May 2009 |
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The busy Java developer's guide to Scala: Scala + Twitter = Scitter
Scala is fun to talk about in the abstract, but for most of the readers of this
column, using it in a practical way makes the difference between seeing it as a "toy"
and using it on the job. In this installment, Ted Neward uses Scala to build the basic
framework for a client library for accessing Twitter, a popular micro-blogging system.
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Articles |
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05 May 2009 |
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Java postmortem diagnostics, Part 1: Introduction to JSR 326 and Apache Kato
The artifacts produced when your Java application fails can
help you analyse the root causes of the failure. A standard API to facilitate
postmortem analysis is being developed by the Java Community process, and the Apache Kato project is under way to produce a reference implementation and tools for this API. This article, the first in a two-part series, introduces the Post mortem JVM Diagnostics API (JSR 326) and summarises the ways Kato will help you make good use of it. Part 2 will explore postmortem-diagnosis scenarios in greater depth.
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05 May 2009 |
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Realities of open source cloud computing, Part 3: Managing the cloud
You've picked the perfect cloud computing platform for your
needs, and you have a well-designed application to run on it. The
hard part is done, right? Not so fast. You still need to consider all
the things you'd typically worry about if the application was
for your own servers: deployment, testing, and monitoring. This might be
intimidating, since your application will
run on somebody else's machines (which you might not have access to, or know
much about).
In this final part of the "Realities of open source cloud computing" series,
learn about several open source tools and technologies to help you administer your
application in a cloud.
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Articles |
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05 May 2009 |
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Importing new canonical tModels: A utility for updating your WebSphere Application Server UDDI registry
Keep your Universal Description Discovery and Integration (UDDI) registry current with this simple utility for importing new canonical tModels
(technical models). The utility ensures that newly defined canonical tModels are saved to your IBM WebSphere Application Server UDDI registry database with defined keys for both V2 and V3.
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Articles |
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29 Apr 2009 |
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The RGB/Green.org Sustainability Challenge
The Sustainability Challenge is an invitation to develop a sustainable Web site for
your local community. Learn how to build an organic community-driven site using
Drupal, an increasingly popular open source content-management system (CMS).
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Articles |
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28 Apr 2009 |
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Use Ruby on Rails to create an LDAP directory service in Tivoli Directory Server V6.0
In this article, learn
how to use the Net::LDAP library to create an LDAP directory service in the Tivoli
Directory Server V6.0 directory server. Walk through examples to add, modify, search,
and delete a directory entry with the Net::LDAP Ruby library. Create a Ruby on Rails application using Tivoli Directory Server V6.0 as a back-end database.
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Articles |
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28 Apr 2009 |
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Get to know the QueryPath PHP library
HTML, HTTP, and XML are the undisputed triumvirate that form the
backbone of Web technology. For the PHP developer, working with these
can be frustrating. The new QueryPath library, a PHP cousin
of the jQuery JavaScript library, offers an efficient API for working
with XML, HTML, and HTTP. From Web pages to Web services, SVG to SPARQL, RDF
to Atom, QueryPath provides a robust yet simple API for contemporary Web
development in PHP. In this article, learn how to build QueryPath objects,
and how to traverse and manipulate XML and HTML. Walk through an example that uses QueryPath to access a
Web service (Twitter).
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Articles |
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28 Apr 2009 |
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Developing widgets with Dojo 1.x
Learn the basics of developing HTML widgets using the Dojo JavaScript
toolkit. This article gives you an introduction, and provides several examples
to help you in the process--starting with sample
widgets and moving up to more complex widgets, while highlighting and solving the common
issues you could encounter in the development phase.
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Articles |
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28 Apr 2009 |
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Easier testing with EasyMock
Join Elliotte Rusty Harold for a look at some hard unit tests made easy through
mock objects -- more specifically, the EasyMock framework. This open source library saves you time and helps make your mock-object code concise and legible.
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Articles |
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28 Apr 2009 |
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Mastering Grails: Authentication and authorization
Grails provides all the basic building blocks you need to put together a secure Web application, ranging from a simple login infrastructure to role-based
authorization, and in this installment of Mastering
Grails, Scott Davis gives you a hands-on lesson in securing your Grails application. You'll also learn about some plug-ins that can help you extend your applications' security capabilities in new directions.
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Articles |
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28 Apr 2009 |
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Mobile workforce operational support using Eclipse RCP
The modern workforce is increasingly mobile, with many jobs performed in
the field, far from standard workplace tools, such as desk-bound computers and
wired networks. Even for more mobile devices,
connectivity is limited to wireless accessible areas. Learn about
the development of a Mobile Workforce Framework based on the open source
Eclipse Rich Client Platform (RCP) for supporting teams who must work in
remote areas with limited or no network access. This article
focuses on the value of a common open source platform to myriad remote teams, the reduction in paper and travel to perform synchronization,
and improved paper-free access to critical information when "off the net."
The Mobile Workforce Framework project, also known as Maestro,
illustrates how many architectural drivers like synchronization, plug-in
functionality, and offline support are met by the using the Eclipse RCP.
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Articles |
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21 Apr 2009 |
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Migrate to a virtual Linux environment with Clonezilla
$@!LessThan!@$!--In this article, l--$@!GreaterThan!@$Learn how to use the open source Clonezilla Live
cloning software to convert your physical server to a virtual one.
Specifically, see how to perform a physical-to-virtual system migration using
an image-based
method.
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Articles |
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21 Apr 2009 |
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Build a RESTful service on CICS with PHP
CICS Transaction Server (TS) is a powerful transaction manager designed for
rapid, high-volume processing. SupportPac CA1S uses technology from IBM
WebSphere sMash to enhance CICS TS with PHP scripting capabilities and
Representational state transfer (REST)-related features. This tutorial shows how you can use PHP to quickly and easily
work with CICS programs and expose them on the Web. If you are a PHP developer,
find out how you can use your skills to interact with enterprise assets in CICS;
if you are a CICS developer, see how PHP provides a simple and agile way to
manipulate your existing resources.
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Tutorial |
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21 Apr 2009 |
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Understanding wiki software
When people think of wikis, Wikipedia most often comes to mind. Yet, businesses have
found that using wiki software to build Web sites, manage online user manuals, and
encourage collaboration among employees takes the software far outside the box. See
how MediaWiki has been the choice of many successful collaborations and information-sharing implementations.
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Articles |
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21 Apr 2009 |
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Common Public License (CPL) -- V1.0
As of 25 Feb 2009, IBM has assigned the Agreement Steward role for the CPL to the Eclipse Foundation. Eclipse has designated the Eclipse Public License (EPL) as the follow-on version of the CPL.
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16 Apr 2009 |
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Common Public License (CPL) Frequently asked questions
This FAQ provides answers to commonly asked questions related to the CPL, which has been superseded by the Eclipse Public License (EPL). It is provided for informational purposes only. It is not part of, nor does it modify, amend, or supplement the terms of the CPL. The CPL is a legal agreement that governs the rights granted to material licensed under it, so please read it carefully. If there is any conflict between this FAQ and the CPL, the terms of the CPL shall govern. This FAQ should not be regarded as legal advice. If you need legal advice, you must contact your own lawyer.
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Articles |
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16 Apr 2009 |
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Realities of open source cloud computing, Part 2: Developing for the cloud
You've probably heard the phrase "Write once, run anywhere." But if
you want to write for an application that runs in a cloud, you really have to know
what you're doing. In Part 2 of this "Realities of open source cloud computing" series, learn
how to write an application using PHP to run on the Aptana cloud computing
platform. Explore some of the critical design differences between a cloud application and a
traditional N-tier application. The concepts are illustrated
with a seemingly simple application, using familiar open source
technologies, that taps into the strengths of cloud computing.
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Articles |
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14 Apr 2009 |
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3-D modeling with SketchUp and Eclipse, Part 1: Creating the bridge between SketchUp and Eclipse
One of Google's most recent and popular tools, SketchUp, takes the pain
out of 3-D modeling. Not only does SketchUp make it easy to
create designs manually but it also allows you to automate the design process
with Ruby scripts. Because managing and editing these scripts is so important,
it helps to have a full-featured development environment like Eclipse. Learn
how to configure SketchUp and Eclipse so you can edit scripts in Eclipse
and automatically execute them in SketchUp.
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Articles |
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14 Apr 2009 |
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Cultured Perl: Perl and the Amazon cloud, Part 2
This five-part series walks you through building a simple
photo-sharing Web site using Perl and Apache to access Amazon's Simple Storage
Service (S3) and SimpleDB. In this installment, learn how to upload a file
into S3 from a Web page through an HTML form to minimize the load on the
server, while maintaining a tight security policy.
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Articles |
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08 Apr 2009 |
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Deploying Django applications to a production server
Django is a Python-based open source Web application framework that
focuses on making the process of creating database-driven Web sites and Web
applications easier. Getting started with developing Django applications is
simple, as a development Web server is included with the framework. However,
this server is not suitable for use in a production environment, so further
steps are required to deploy your Django application to the Web. In
this article, you will learn about the Django framework and how to install it
on your local machine. Discover how a Django application is made and
about the automatic administration interface created for your application. You
will then find out how to deploy your Django application to the Web on a
server running Apache and mod_python. Finally, learn how Django
applications can and should be scaled as your application's requirements
grow.
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Articles |
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07 Apr 2009 |
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XML: The bridge between GWT and PHP
Google Web Toolkit (GWT) applications, apart from connecting to servlets in time-honored Java fashion, can also use PHP Web services to send and receive data
in XML. You'll explore methods to generate XML documents and process them, both in the Java language and in PHP.
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Articles |
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07 Apr 2009 |
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Realities of open source cloud computing, Part 1: Not all clouds are equal
Your CTO wants to know your cloud computing strategy -- and
wants to know it tomorrow. There are a lot of choices, with many
differences and similarities. This article explores some of the
options for an organization that wants to leverage the power and
promise of cloud computing, with a focus on open source
technologies. Learn about several of the providers, such as
Amazon, Microsoft, Google, IBM, Aptana, Heroku, Mosso, Ning, and
Salesforce. Review the relative strengths and weaknesses of
each platform, and what types of open source and proprietary
technologies are supported on each platform. Learn how to pick the platform that fits your needs.
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Articles |
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07 Apr 2009 |
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Is there value in cloud computing?
Cloud computing is at an early stage of development, with a diverse group of providers
delivering an array of services from full-blown cloud-based applications to storage
services to spam filtering. Learn what cloud computing is and how it could affect the
future of architecture.
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Articles |
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31 Mar 2009 |
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Charming Python: Distributing computing with RPyC
RPyC is a seamless library for integrating $@!LessThan!@$!--000 and interacting--$@!GreaterThan!@$ Python
processes on many machines/processes. This article looks at the advantages or
drawbacks RPyC has over other distributed Python frameworks such as XML-RPC
and Pyro. A few simple examples of using RPyC are included to give you a
feel for the library.
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Articles |
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31 Mar 2009 |
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Cultured Perl: Perl and the Amazon cloud, Part 1
This five-part series walks you through building a simple
photo-sharing Web site using Perl and Apache to access Amazon's Simple Storage
Service (S3) and SimpleDB. In this installment, get a feel for the benefits and
drawbacks of S3 and SimpleDB by taking a tour of their
architectures and starting to design your photo-sharing site.
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Articles |
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31 Mar 2009 |
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Exploring CouchDB
Relational databases define a strict structure and provide a rigid
way to maintain data for a software application. Apache's open source CouchDB
offers a new method of storing data, in what is referred to as a schema-free
document-oriented database model. Instead of the highly structured data
storage of a relational model, CouchDB stores data in a semi-structured
fashion, using a JavaScript-based view model for generating structured
aggregation and report results from these semi-structured documents. CouchDB
has been developed from the ground up with Web applications as the primary
focus and has its sights on becoming the de-facto database for Web
application development.
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Articles |
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31 Mar 2009 |
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Make dashboards with XQuery
Many digital dashboards that cropped up in the 1980s were horrible (if not unsubtle) analogs to a car's dashboard. Very few presented business data in a compelling manner. Today, Web-based dashboards try to achieve the same thing. Discover what makes a good dashboard, and learn to identify and leverage key performance indicators (KPIs) for more effective digital dashboards. Finally, build a Web dashboard using the eXist XML database and XQuery.
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Articles |
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31 Mar 2009 |
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OSGi and Spring: Part 2: Build and deploy OSGi as Spring bundles using Felix
Build and package Java classes as OSGi bundles using the Spring DM framework in a Felix
container. This article, Part 2 of this series, shows you how to create bundles using the Spring
framework and then deploy them in a Felix runtime environment. You will see how the core OSGi
framework dependency is removed through a simple Spring-based configuration.
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Articles |
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30 Mar 2009 |
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Ganglia and Nagios, Part 2: Monitor enterprise clusters with Nagios
This is the second article in a two-part series that looks at a hands-on
approach to monitoring a data center using the open source tools Ganglia and
Nagios. In Part 2, learn how to install and configure Nagios, the popular open
source computer system and network monitoring application software that
watches hosts and services, alerting users when things go wrong. The article
also shows you how to unite Nagios with Ganglia (from Part 1) and add two
other features to Nagios for standard clusters, grids, and clouds to help with
monitoring network switches and the resource manager.
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Articles |
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25 Mar 2009 |
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Service Component Architecture (SCA) lets you invoke components from different technologies
Service Component Architecture (SCA) is a new technology that
abstracts underlying computer services so a system is more flexible
while incorporating subsystems implemented in different technologies.
SCA moves many details of access technology, implementation, and protocols
into the middleware layer, away from the business logic.
This abstraction comes at a price for some developers. It can
be difficult to understand and debug business applications.
Learn how a component is invoked when the invocations are taking place over various protocol bindings and
implementation types. The example uses the open source Apache Tuscany SCA runtime to explain
the underlying complexity.
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Articles |
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24 Mar 2009 |
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Título da Série: Você gostará deste artigo
O resumo de seu artigo entra aqui. Coloque os principais pontos e frases chave no início do resumo, pois pode ser truncado em resultados de procura.
Faça um resumo interessante, mas sucinto.
Tenha como meta três a cinco frases que expressam porque o leitor se interessaria pelo conteúdo (motivo) e o que ele ou ela pode obter com a leitura do conteúdo (benefícios).
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Articles |
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20 Mar 2009 |
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Harness the power of XML to Open Financial Exchange files
The ongoing task of bookkeeping is made somewhat easier when financial institutions allow customers to download files for import into their chosen accounting package. These files can pose a problem for financial programmers, however, because they are frequently only available in Open Financial Exchange (OFX) format, which is not XML compatible. Discover how to use PHP with string substitution to make OFX files XML compliant. Thus, you harness the power of XML parsing and deconstruction to OFX files and make financial programming more precise.
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Articles |
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17 Mar 2009 |
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Above the clouds with Android
The open source Android operating system has taken the world by
storm, allowing sophisticated cloud computing applications to run wherever you are.
Designed to be highly efficient on battery-powered devices like the T-Mobile G1 smart phone, at heart, Android is Linux, and there are several layers to the Android
programming model that permit the creation of secure applications tailor-made for
cloud computing. Soar to new heights with Android and experience mobile computing as
you've never experienced it before.
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Articles |
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17 Mar 2009 |
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Create BlackBerry applications with open source tools, Part 3: Building a social-networking application
The most intriguing and powerful phenomenon in the digital age is the impact
of social-networking applications on the consumer and business markets. Marketing professionals are changing how they
interact with prospective clients, peer groups can easily form,
and, as demonstrated in the fall of 2008, social networking can be part of
a successful political campaign. Combined with the popularity and power of
the BlackBerry platform, you have the makings of a dynamic combination. Part
3 of this "Create BlackBerry applications with open source tools" series explores how the BlackBerry is
a great device for writing and deploying social-networking applications.
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Tutorial |
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17 Mar 2009 |
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Develop a WordPress plug-in with Eclipse PDT
WordPress is a Web publishing platform written in PHP, using MySQL for storage.
It provides extensibility by building plug-ins that add filters and actions. The Eclipse PHP Development Tools (PDT)
V2.0 project allows you to use Eclipse to build PHP applications. Learn how to extend
WordPress by using PDT to build plug-ins.
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Articles |
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10 Mar 2009 |
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Use XQuery for the presentation layer
Many Web applications use the Model-View-Controller (MVC) pattern to separate the three concerns. Using XQuery for presentation enables view-side developers to create robust presentation effects without tying the view to any particular underlying application server or programming language. This article explains in detail the advantages of using XQuery over other view technologies, how XQuery is implemented in the presentation layer,
and a realistic example of such an implementation.
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Articles |
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10 Mar 2009 |
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Rich Internet Applications with Grails, Part 2: Grails and the Google Web Toolkit
In this second part of a two-part
series, add to the Grails-powered Web services you created in Part 1. You will create a new search page, but this time using the Google Web Toolkit (GWT)
to create the application. You will also use some richer UI widgets from the Ext GWT library.
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Articles |
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10 Mar 2009 |
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Ganglia and Nagios, Part 1: Monitor enterprise clusters with Ganglia
This is the first article in a two-part series that looks at a hands-on
approach to monitoring a data center using the open source tools Ganglia and
Nagios. In Part 1, see how to install and configure
Ganglia, the scalable, distributed monitoring system for high-performance
clusters based on a hierarchical design. Also learn how to
add more monitoring capability by writing Ganglia plug-ins and by enabling
external-source spoofing.
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Articles |
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04 Mar 2009 |
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JiBX 1.2, Part 1: Java code to XML schema
XML schema definitions are the basis for many types of data exchanges, including most forms of Web services. But XML Schema is a complex standard, and most tools for creating and modifying schema definitions are not as powerful or easy to use as those for working with Java code. The new features of JiBX 1.2 let you start from Java code and easily generate quality schema definitions to match your data structures. You can then use the schemas directly, whether you use JiBX data binding or not.
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Tutorial |
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03 Mar 2009 |
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JiBX 1.2, Part 1: Java code to XML schema
XML schema definitions are the basis for many types of data exchanges, including most forms of Web services. But XML Schema is a complex standard, and most tools for creating and modifying schema definitions are not as powerful or easy to use as those for working with Java code. The new features of JiBX 1.2 let you start from Java code and easily generate quality schema definitions to match your data structures. You can then use the schemas directly, whether you use JiBX data binding or not.
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Tutorial |
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03 Mar 2009 |
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Use jQuery and PHP to build an Ajax-driven Web page
Learn to use jQuery, the lightweight JavaScript framework, to add Asynchronous JavaScript + XML (Ajax) functionality to your PHP pages.
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Articles |
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03 Mar 2009 |
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Use PHP to convert Twitter to RSS
This article explains the underpinnings of Twitter and shows PHP
developers how to use libraries to manipulate feeds into Rich Site Summary
(RSS).
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Articles |
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03 Mar 2009 |
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JiBX 1.2, Part 2: XML schema to Java code
Code generation from XML schema definitions is widely used for all types of XML data exchange, including Web services. Most data-binding tools rigidly structure generated code based on the schema, even aspects of the schema that may be irrelevant to your application. JiBX 1.2 generates cleaner code by doing a better job of interpreting the schema and eliminating unnecessary class clutter. It also provides extensive customizations for the generated code, including customizations for easily eliminating unnecessary components of the schema.
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Tutorial |
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03 Mar 2009 |
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Using E4X on the server-side with Jaxer
The ECMAScript for XML (E4X) standard gives JavaScript developers a powerful API to work with XML. As it is not supported in Internet Explorer, you might not get to use it often. That is not an issue if you use JavaScript on the server with Jaxer. In this article, you see how JavaScript and E4X make it easy to work with XML on the server. Combine this key ingredient with Jaxer to create Ajax applications using nothing but JavaScript.
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Articles |
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03 Mar 2009 |
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Use PHP to build a Twitter-like system on your site
Learn how to use PHP to add a Twitter-like interface to
your applications. Specifically, we show you how to allow users to add posts,
disseminate those posts to other users who want to receive them, and allow
users to choose to follow the posts of other users.
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Articles |
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24 Feb 2009 |
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What's new in PHP V5.3, Part 5: Upgrading from PHP V5.2
This "What's new in PHP V5.3" series covers new and exciting features in PHP V5.3, which is scheduled to release soon. Part 1 looks at the changes made to the object-oriented programming and object handling in PHP V5.3, Part 2 looks at lambda functions and closures. In Part 3, we look at namespaces, which is one of the most anticipated and the most debated feature in this release of PHP. In Part 4, we take a close look at Phar, which is an archive format that can be used within PHP. In this final part of the series, learn about things to consider when upgrading from PHP V5.2. There are changes that break backward-compatibility and features that are deprecated in PHP V5.3 for removal in future versions. Some enhancements to existing features within PHP are also covered.
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Articles |
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24 Feb 2009 |
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Rich Internet Applications with Grails, Part 1: Build a Web application using Grails and Flex
Rich Internet Applications (RIAs) promise the dynamism and functionality of
desktop applications through the browser. One of the key characteristics is
moving your presentation layer to the client and backing it with a robust
RESTful service layer on the server. This idea is being popularized with
buzzwords like SOUI (Service Oriented User Interface) and SOFEA (Service
Oriented Front End Architecture). In this article, the first of a two-part series, you
will see how simple it is to create a Web service back end using Groovy's
Grails Web application framework, and you will hook it up to an RIA developed
with Adobe's Flex framework.
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Articles |
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24 Feb 2009 |
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Manage blogs on AIX
AIX provides an ideal environment for blogs and for the Web Content
Management System (CMS) tools running those blogs because of its Web and
text-processing power. You get the best of both worlds by combining open source
CMS and AIX for a complete and ready-to-use content management tool with extensive
support from the open source community, along with a secure and reliable server
with high availability, scalability, and enterprise-level support from IBM. This
article introduces some of the best CMS solutions for AIX available from the open
source community, and helps readers understand the important differences among
them. The article also provides a guideline for system architects and developers to help them choose the CMS that best fits their needs.
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Articles |
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24 Feb 2009 |
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Building an Arduino-based laser game, Part 3: Transmit, and that's a hit
Arduino is an inexpensive, easy-to-use electronics platform. The entire platform, both the hardware and the software, is completely open source, and the language is loosely based on C/C++. Arduino was built for makers, tinkerers, and artists who want to take the plunge into creating interactive physical objects. This three-part series starts with basic Arduino hardware and uses it to create an interactive laser game called "'Duino tag," where players can play tag using devices built nearly from scratch. In this final part of the "Building an Arduino-based laser game" series, you'll build the transmitter and complete the 'Duino Tag gun.
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Tutorials |
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24 Feb 2009 |
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Building an AIM-enabled application in Eclipse
Today's applications take advantage of an interface that many people are already using: instant messaging (IM). Applications offer integration with IM because it offers easy access through an interface that people are familiar with and many people already have up and running. IM applications are also available on many mobile platforms, giving your users the ability to interface with your application from mobile devices.
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Articles |
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24 Feb 2009 |
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The Eclipse development platform: Introduction, download and installation
Learn what Eclipse and the Eclipse foundation is, how and where to download the Eclipse platform, and how to setup and install Eclipse with Apache Tomcat and the Java Development Kit.
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Demos |
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23 Feb 2009 |
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Create BlackBerry applications with open source tools, Part 2: Building an RSS reader
In the same way that open source has revolutionized the software development marketplace,
the proliferation of alternative news sources has shaken up the traditional news-source monopolies. Today, you can get free news from various Internet sources and from the Internet outlets of the mainstream
media. Trekking from one Web site to another to read news stories is possible, but
tedious. And what about updates to
news stories of interest? Wouldn't it be better if the news of interest is
aggregated for your convenience? You can do it with an RSS reader for BlackBerry.
Here in Part 2 of this "Create BlackBerry applications with open source tools" series, explore the RSS data-distribution format by creating a BlackBerry RSS reader suitable for taking news wherever you and your BlackBerry go.
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Tutorial |
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17 Feb 2009 |
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Practically Groovy: Groovy: A DSL for Java programmers
Groovy expert Scott Davis reboots the Practically Groovy series, dormant since 2006. This initial installment catches you up on Groovy's recent history and the current state of the Groovy union. Then you'll learn how easy it is to get started with Groovy, circa 2009.
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Articles |
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17 Feb 2009 |
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Perform uniform mounting with generic NFS
To efficiently achieve uniform mounting in the presence of multiple,
simultaneous NFS version exports, you need a generic NFS mount utility. Learn
how a generic NFS mount utility
can help reduce handling multiple NFS versions and simplify the management of
those versions. The article
describes the concept of the generic NFS mount, outlines the advantages and
applications of the system, and gives some overall design
details.
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Articles |
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11 Feb 2009 |
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Cloud computing with Amazon Web Services, Part 5: Dataset processing in the cloud with SimpleDB
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions
provided by boto, an open source Python library for interacting
with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. In this article, learn some of the basic concepts and check out some of the functions provided by boto.
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Articles |
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10 Feb 2009 |
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Building an Arduino-based laser game, Part 2: Firing the gun
Arduino is an inexpensive, easy-to-use electronics platform. The entire platform, both the hardware and the software, is completely open source, and the language is loosely based on C/C++. Arduino was built for makers, tinkerers, and artists who want to take the plunge into creating interactive physical objects. This three-part series starts with basic Arduino hardware and uses it to create an interactive laser game called "'Duino tag," where players can play tag using devices built nearly from scratch. Here in Part 2 of this "Building an Arduino-based laser game" series, you'll build and test the receiver part of the 'Duino Tag gun.
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Tutorials |
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10 Feb 2009 |
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Build an Eclipse development environment for Perl, Python, and PHP
Eclipse presents a wealth of capabilities for building tools for compiled languages like C and the Java programming language, but provides little support for scripting languages like Perl, Python, and PHP. For these and similar languages, the Eclipse Dynamic Languages Toolkit (DLTK) comes to the rescue. Walk through the process of building a DLTK-based IDE and discover sample code for each step.
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Tutorials |
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03 Feb 2009 |
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Deploying an Eclipse-based application with Java Web Start
Learn how to build a small, bare-bones application built on the Eclipse
Framework and deploy it through Java Web Start (JWS) -- a technology you can
use to deploy Java applications easily over standard Internet sites, enabling easy upgrades
and distribution.
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Tutorials |
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03 Feb 2009 |
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Architectural manifesto: An introduction to the possibilities (and risks) of cloud computing
Cloud computing has been a hot topic in the
media and in the IT industry. There are critics
who say that it's nothing new. In this final edition of Architectural
Manifesto, learn about the possibilities and risks of cloud computing.
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Articles |
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02 Feb 2009 |
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Python 3 primer, Part 2: Advanced topics
Python 3 is the latest version of Guido van Rossum's powerful
general-purpose programming language. It breaks backwards compatibility with
the 2.x line but has cleaned up some syntax issues. This second article builds
on the previous article. In Part 2 of this two-part series, discover more new Python features
and details on more advanced topics such as changes in abstract base classes,
metaclasses, and decorators.
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Articles |
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30 Jan 2009 |
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What's new in PHP V5.3, Part 4: Creating and using Phar archives
PHP V5.3 is scheduled to release soon. This "What's new in PHP V5.3" series covers new and exciting features in this release. Part 1 looks at the changes made to the object-oriented programming and object handling in PHP V5.3, Part 2 looks at lambda functions and closures. And in Part 3, we look at namespaces, which is one of the most anticipated and the most debated feature in this release of PHP. Here in Part 4, we take a close look at Phar, which is an archive format that can be used within PHP. It can be used to not only archive files but also to deliver and run an entire PHP application from a single file. It can be used with PHP as an extension from the PECL repository, but will be an official extension of PHP in the upcoming version.
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Articles |
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27 Jan 2009 |
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Embed Lua for scriptable apps
The Lua programming language is a small scripting language specifically
designed to be embedded in other programs. Lua's C API allows exceptionally
clean and simple code both to call Lua from C, and to call C from Lua. This
allows developers who want a convenient runtime scripting language to easily
implement the basic API elements needed by the scripting language, then use
Lua code from their applications. This article introduces the Lua language as
a possible tool for simplifying common development tasks, and discusses some
of the reasons to embed a scripting language in the first place.
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Articles |
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27 Jan 2009 |
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What's new in PHP V5.3, Part 3: Namespaces
PHP V5.3 will be released by the end of 2008. This series of articles covers new and exciting features found in this release. Part 1 of the series looked at the changes made to the object oriented programming and object handling in PHP 5.3. Part 2 looked at lambda functions and closures. Here in Part 3, we look at namespaces, which is one of the most anticipated and the most debated feature in this release of PHP. The concept of namespaces provides a way to help avoid problems with multiple functions, classes, and constants of the same name being defined multiple times.
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Articles |
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20 Jan 2009 |
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Mastering Grails: Give your Grails applications a facelift
In this installment of Mastering Grails, Scott Davis demonstrates how to make drastic changes to the look and feel of a Grails application using Cascading Style Sheets (CSS), templates, tag libraries (TagLibs), and more.
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Articles |
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20 Jan 2009 |
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Supplement Creative Commons with open standards
$@!LessThan!@$!--Content owners use Digital Rights Management (DRM) technology to
control access to their content.--$@!GreaterThan!@$
Deploying Digital Rights Management (DRM) technology restricts access to
content to users who have not been specifically authorized by the content owner.
However, these protections sometimes prevent users from using the
content in ways they would expect to be entitled, such as playing music
on their computers and their portable MP3 players. Through DRM standards that
encourage some Creative Commons (CC) ideals, consumers can choose usage rights.
Regular developerWorks author Judith Myerson gives a brief proprietary DRM
recap, shows what the problems are, suggests some solutions to increase
flexibility, and gives an example of a cross-browser menu of usage rights
criteria, constraints, and requirements that consumers can choose.
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Articles |
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13 Jan 2009 |
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Mastering Eclipse V3.4, Part 3: JDT text editor tips and tricks
This "Mastering Eclipse" series of articles teaches complete newcomers to Eclipse the ins and outs of the Eclipse IDE. By the end of the series, you'll be on par with advanced users. In this article, take a tour of Eclipse's Java editor and learn about some of its advanced features.
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Articles |
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13 Jan 2009 |
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Social-networking open source visualization aids
Social-networking data analysis can help you understand content, connections, and opportunities for your personal and business associations. This article presents tools and code to extract key components of your social network using the Twitter API to chart, geolocate, and visualize your social-networking data.
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Articles |
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06 Jan 2009 |
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Groovier Spring, Part 2: Change application behavior at run time
The Spring Framework provides a solid foundation for Web and enterprise applications. Spring's support for dynamic languages like Groovy adds capabilities that can make your application architecture more flexible and dynamic. In the second and final installment of the Groovier Spring series, you'll learn how to change the behavior of Spring applications at run time using dynamically refreshable beans.
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Articles |
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06 Jan 2009 |
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Groovier Spring, Part 1: Integration basics
The Spring Framework provides a solid foundation for Web and enterprise applications. Spring's support for dynamic languages like Groovy adds capabilities that can make your application architecture more flexible and dynamic. In Part 1 of this two-part series, you'll learn the basics of integrating Groovy into Spring applications.
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Articles |
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06 Jan 2009 |
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Creating custom JavaServer Faces components in IBM Rational Application Developer Version 7.5
This article explains how you can use IBM Rational Application Developer V7.5
to create custom JavaServer Faces (JSF) components.
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Articles |
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06 Jan 2009 |
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Create your own Eclipse plug-in template
Default plug-in templates in Eclipse are useful as long as they meet users' needs. When a specified requirement is beyond the scope of a default template, it is necessary to customize a template. This article offers insight into how to customize a plug-in project template in Eclipse, elaborates on multisection implementation and control within templates, introduces UI component customization methods to improve usability, illustrates a way to add input validation function on the UI side, and explains how to organize the directory structure of plug-in project automatically.
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Articles |
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22 Dec 2008 |
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Building an Arduino-based laser game, Part 1: Arduino basics
Arduino is an inexpensive, easy-to-use electronics platform. The entire platform, both the hardware and the software, is completely open source, and the language is loosely based on C/C++. Arduino was built for makers, tinkerers, and artists who want to take the plunge into creating interactive physical objects. This three-part series starts with basic Arduino hardware and uses it to create an interactive laser game called "'Duino tag," where players can play tag using devices built nearly from scratch. Here in Part 1 of this "Building an Arduino-based laser game", we craft basic experiments that prepare us for and are a part of 'Duino tag.
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Tutorials |
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22 Dec 2008 |
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Python 3 primer, Part 1: What's new
Python 3 is the latest version of Guido van Rossum's powerful
general-purpose programming language. It breaks backwards compatibility with
the 2.x line but has cleaned up some syntax issues. This article is the first
in a series that talks about the changes that affect the language and
backwards compatibility, and it provides examples of new
features.
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Articles |
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19 Dec 2008 |
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Hardening the Linux server
Servers -- whether used for testing or production -- are primary targets
for attackers. By taking the proper steps, you can turn a vulnerable box into
a hardened server and help thwart outside attackers. Learn how to secure SSH
sessions, configure firewall rules, and set up intrusion detection to alert
you to any possible attacks on your GNU/Linux server.
Once you've gained a solid foundation in the
basics of securing your server, you can build on this knowledge to further
harden your systems.
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Tutorials |
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17 Dec 2008 |
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Stop writing so much code!
Write less code by leveraging a battle-hardened collection of open source utilities from the Apache Commons project's Lang library. Reusing other people's reliable code helps you get your software to market more quickly, with fewer defects.
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Tutorials |
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16 Dec 2008 |
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Develop a GPS-aware application for the Nokia N810, Part 1: Development environment
Learn how to configure a development environment targeted at the Nokia
N810 Internet Tablet, including setting up Eclipse on a target development
machine for the Python language.
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Articles |
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16 Dec 2008 |
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Develop eSWT-based applications for the Nokia S60 smartphone
The Java Platform, Micro Edition (Java ME) is a ubiquitous application platform for embedded devices, and many modern mobile phones are capable of running these types of applications. The embedded Standard Widget Toolkit, or eSWT, is an Eclipse technology that can be used to develop native-looking Java applications for a variety of mobile phones. eSWT is developed as part of the embedded Rich Client Platform (eRCP) project, which as a whole is only supported on devices running Microsoft Windows Mobile and Windows CE operating system. However, standalone eSWT libraries are available on all devices running a recent version of Nokia's S60 platform, currently one of the leading smartphone platforms in the world. This tutorial demonstrates how to develop eSWT-based applications with the help of the newly released Eclipse Mobile Tools for Java (MTJ) and Nokia's S60 Platform SDK.
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Tutorials |
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16 Dec 2008 |
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How to ungrab Firefox hotkeys from Flash players
Flash players and other embedded applications in Firefox require their own hooks for keyboard and mouse input. For years, Flash has grabbed Firefox keypresses, which stops people from using the keyboard for navigation, creating new tabs, or even exiting the Flash focus. Learn how to create a Perl program that communicates with a Firefox extension and cnee to restore your keyboard functionality.
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Articles |
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16 Dec 2008 |
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Mastering Grails: Grails in the enterprise
In this installment of Mastering Grails, series author Scott Davis puts to rest any qualms about Grails' readiness for the enterprise. You'll see how to use Grails with enterprise-caliber libraries including the Java Management Extensions (JMX), Spring, and log4j.
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Articles |
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16 Dec 2008 |
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Debug Java applications remotely with Eclipse
You don't need to debug Java applications on just your local desktop. Learn how to spread around your debugging using different connection types that make up remote debugging. This article outlines the features and examples that show how to set up remote application debugging.
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Articles |
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09 Dec 2008 |
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Distributed computing with Linux and Hadoop
Every day people rely on search engines to find specific content in
the many terabytes of data that exist on the Internet, but have you ever wondered
how this search is actually performed? One approach is Apache's Hadoop,
which is a software framework that enables distributed manipulation of vast
amounts of data. One application of Hadoop is parallel indexing of Internet Web pages.
Hadoop is an Apache project with support from Yahoo!, Google, IBM, and others.
This article introduces the Hadoop framework and shows you why it's one of the
most important Linux-based distributed computing frameworks.
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Articles |
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09 Dec 2008 |
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What's new in PHP V5.3, Part 2: Closures and lambda functions
Follow along in this "What's new in PHP V5.3" series of articles that covers the new and exciting features found in PHP 5.3, a version that will be released by the end of this year. Part 1 of the series looked at the changes made to the object oriented programming and object handling in PHP 5.3. In Part 2, we look at closures and lambda functions. They are designed to make programming much easier by allowing you to easily define throwaway functions that can be used in many different contexts.
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Articles |
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09 Dec 2008 |
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Cloud computing with Amazon Web Services, Part 4: Reliable messaging with SQS
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions
provided by boto, an open source Python library for interacting
with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications.
In this article, learn about the
reliable and scalable messaging service provided by Amazon Simple Queue Service (SQS).
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Articles |
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02 Dec 2008 |
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Five good programming habits in PHP
Just like any language, developers can write code in PHP that ranges in quality from truly awful to very good. Learn good programming habits that can help you bridge the productivity gap.
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Articles |
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02 Dec 2008 |
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30 game scripts you can write in PHP, Part 3: Creating 10 advanced scripts
PHP is an easy to use, easy to learn, widely accessible programming language. It's well suited for developing simple scripts that you can use to help you in all kinds of games. Whether you play simple pen and paper games by yourself, complex tabletop role-playing games with a group of people, or online games of any kind, this series will have something for you. This article will build on Parts 1 and 2 of this series, exploring 10 cool scripts that can be used in various types of games -- from an inventory-management system and note-taking scripts to word-game scripts to image manipulation and scripts for games like keno.
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Articles |
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02 Dec 2008 |
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Build faster Web applications with caching
Web developers who use Java technologies can quickly improve their applications'
performance by using a cache utility. Java Caching System (JCS), a powerful
distributed caching system for Java applications, is a highly configurable tool with a
simple API. This article gives you an overview of JCS and shows how you can use it to speed up your Web applications.
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Articles |
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02 Dec 2008 |
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30 game scripts you can write in PHP, Part 2: Developing 10 intermediate scripts
PHP is an easy to use, easy to learn, widely accessible programming language. It's well suited for developing simple scripts that you can use to help you in all kinds of games. Whether you play simple pen and paper games by yourself, complex tabletop role-playing games with a group of people, or online games of any kind, this series will have something for you. This article will build on Part 1 of this series, exploring 10 intermediate scripts that can be used in various types of games. These scripts are intended for three types of games: role playing games, games of chance and word games.
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Articles |
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25 Nov 2008 |
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Samba on AIX
Samba is an open source, free software suite that provides seamless file and
print services between Windows clients and UNIX-like platforms. It can be run on a
UNIX-like platform like AIX, BSD UNIX, Linux, IBM 390 and OpenVMS. Samba uses the TCP/IP protocol that is installed in the host server. When configured, this server software allows the host machine to share files and printers and make them accessible from Windows clients.
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Articles |
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25 Nov 2008 |
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Automation for the people: Wielding wizard-based installers
Installing software is often a painful chore for most users. The installation
package you generate -- the "last mile" of software development -- can make the
difference between user adoption and another product thrown into the virtual waste bin. In this installment of Automation for the people, automation expert Paul Duvall demonstrates how the freely available, open source IzPack tool for writing wizard-based installers can make installing your software a snap for users.
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Articles |
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25 Nov 2008 |
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Expand your user-authentication options with mouse dynamics
Learn how to apply the open source tools cnee and Perl in mouse-click dynamics to measure the more-subtle characteristics of human-computer interaction. Use the number and hold time of mouse click events to help authenticate users.
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Articles |
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25 Nov 2008 |
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Building Semantic Web CRUD operations using PHP
Create, Read, Update, and Delete (CRUD) operations are the most basic database operations, but they are also the most crucial. CRUD operations are typically done using the Structured Query Language (SQL) on relational database systems. As the Web is becoming more and more data-oriented, there is a need to shift from SQL-based CRUD operations to Semantic Web-based CRUD operations. Learn how to use PHP to perform CRUD operations over the Semantic Web.
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Articles |
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25 Nov 2008 |
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30 game scripts you can write in PHP, Part 1: Creating 10 fundamental scripts
PHP is an easy-to-use, easy-to-learn, widely accessible programming language. It's well suited for developing simple scripts you can use to help you in all kinds of games. Whether you play simple pen-and-paper games by yourself, complex tabletop role-playing games with a group of people, or online games of any kind, this series will have something for you. Each article in this series will cover 10 scripts in 300 words or fewer (3d10 stands for "roll three 10-sided dice") that are simple enough for even a beginning developer, but useful enough for a seasoned game player. The goal is to give you something you can modify to suit your needs, so you can impress your friends and players by busting out your laptop at your next gaming session.
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Articles |
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18 Nov 2008 |
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Implement a Facebook photo album using the Flex SDK
Adobe has released the free, open source Flex SDK framework to enable developers
to create Rich Internet Applications (RIAs). The Flex framework provides you with
a method of creating cross-browser, cross-platform Web applications that is quick and
simple. Flex applications run in the Flash player, which is installed on the majority of
Internet-connected computers, but Flex provides you with an object-oriented
user interface framework similar to Java's Swing. In this tutorial, develop a
Facebook application in Adobe Flex that displays a slideshow of a user's Facebook
photo albums. The Facebook application will contain a Profile box listing all of the
user's photo albums, each a link to a Flex slideshow of that album. The Flex application
will use the Facebook REST API to fetch the photos of the selected Facebook album and
dynamically generate the slideshow.
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Tutorials |
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18 Nov 2008 |
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Mastering Grails: Asynchronous Grails with JSON and Ajax
JavaScript Object Notation (JSON) and Asynchronous JavaScript + XML (Ajax) are staples of Web 2.0 development. In this installment of the Mastering Grails series, author Scott Davis demonstrates the native JSON and Ajax capabilities baked into the Web framework.
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Articles |
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18 Nov 2008 |
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Create a framework to support XSLT transformation pipelines
Explore the creation of a framework, called Butterfly, that runs in PHP 5 and
facilitates the applications of chains of XSLT stylesheets to XML source documents.
This provides transparent caching of the transformed results. Inspired by the Java(TM)-based Apache Cocoon project, so named because it houses and manages the transformation of data from one form to another (turning caterpillars into butterflies), this much lighter-weight framework is named Butterfly. With the Butterfly framework, you can set up an XML configuration file to define chains of stylesheet transformations, and then instantiate Butterfly objects that can each produce the result of an XSLT transformation chain. This article will also look at the nature of framework design in general as it sketches out this framework in particular.
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Articles |
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18 Nov 2008 |
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Explore Eclipse's plug-in signature mechanism
Security is an important issue when installing a bundle of new features to software. This article explores the signature technologies used by the Eclipse platform to determine the trustworthiness of plug-ins. Eclipse places each plug-in in one of five categories: unsigned or signed, trusted or untrusted, or expired. Learn how to create signed plug-ins in Eclipse and IBM Lotus Expeditor, an Eclipse-based product.
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Articles |
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18 Nov 2008 |
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Download Eclipse Ganymede
Are you a Java EE developer? Download Eclipse open source software bundles for free from developerWorks, including Callisto and Ganymede Simultaneous Release projects, and get started developing with Eclipse frameworks today.
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17 Nov 2008 |
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Create stand-alone Web services applications with Eclipse and
Java SE 6, Part 1: The Web service server application
Use the Eclipse Integrated Development Environment (IDE) and Java
Platform, Standard Edition (Java SE) 6 to create a stand-alone Web services
application that can be run from the console. In this tutorial, the first in a
series, start by getting familiar with the Eclipse IDE. Configure the
environment; create projects, packages, and classes; then run the application
from the command line.
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Tutorials |
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13 Nov 2008 |
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What's new in PHP V5.3, Part 1: Changes to the object interface
PHP V5.3 is set to be released by the end of 2008, and many of the new features in this release have been in the planning stages for a few years. Originally touted as "PHP V6 without native Unicode support," PHP V5.3 has been developed into a feature-rich upgrade to the PHP V5 line. It's designed to be a release to prepare developers for PHP V6 when it comes by adding many new features, cleaning up existing features by tweaking the functionality, fixing platform-specific issues, and deprecating old features that won't be in future versions of PHP. In this "What's new in PHP V5.3" series, we'll look at these new V5.3 features, and see how they are used and how they can be used in your Web application.
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Articles |
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11 Nov 2008 |
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Mastering Eclipse V3.4, Part 2: The JDT
This "Mastering Eclipse" series of articles teaches complete newcomers to Eclipse the ins and outs of the Eclipse IDE. By the end of the series, you'll be on par with advanced users. In this article, learn about working with various parts of the Eclipse JDT.
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Articles |
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11 Nov 2008 |
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Linux project publications: Security
The publications on this page represent contributions by members of the
IBM Linux Technology Center to the development community on the topic of Linux
security.
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Articles |
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08 Nov 2008 |
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Reduce your PC's power consumption through smart activity monitors
Learn how to reduce power consumption in your Linux computers by monitoring
application-usage patterns and user activity.
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Articles |
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04 Nov 2008 |
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Create Web services with Ruby on Rails and Action Web Service
The Action Web Service module implements Web services functionality in Ruby on
Rails. Action Web Service creates server-side support for SOAP and XML-RPC Web service
protocols. You can declare and publish APIs using Action Web Service.
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Articles |
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04 Nov 2008 |
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What's new with Apache Solr
Leverage Apache Solr's many new enhancements to add best-in-breed capabilities to your application.
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Articles |
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04 Nov 2008 |
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OSGi and Spring, Part 1: Build and deploy OSGi bundles using Apache Felix
Develop, build, and package Java class components as Open Services
Gateway initiative (OSGi) bundles and deploy them in the Apache Felix runtime
environment. Then use Felix shell commands to start and stop the bundles and
dynamically update them.
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Articles |
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30 Oct 2008 |
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High-performance XML parsing in Python with lxml
lxml is a fast yet flexible library for XML processing in Python. It comes
bundled with support for XML Path Language (XPath) and Extensible Stylesheet
Language Transformation (XSLT), and it implements the familiar ElementTree API. In
this article, you focus both on the ease of use provided by lxml and on its
high-performance profile when processing very large XML data.
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Articles |
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28 Oct 2008 |
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Building a geospatial information system, Part 1: Understanding the basics
Businesses and educational and governmental institutions are
increasingly using geospatial information systems (GIS) to solve real-world
problems. GIS offers many new ways to visualize information, collaborate, and
do business. In this article, learn the basics of GIS. Explore open source and
proprietary software considerations, a basic GIS architecture, and how GIS is
used to solve problems in various industries.
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Articles |
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28 Oct 2008 |
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Mastering Eclipse V3.4, Part 1: The Eclipse IDE workbench
This "Mastering Eclipse" series of articles teaches complete newcomers to
Eclipse the ins and outs of the Eclipse IDE. By the end of the series, you'll be on par
with advanced users. Here in Part 1, you will learn the parts of the Eclipse IDE and how to customize them.
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Articles |
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28 Oct 2008 |
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Build seven good object-oriented habits in PHP
With PHP's object-oriented (OO) language features, if you aren't already
creating your applications with OO principles in mind, these seven habits will help you
get started in the transition between procedural programming and OO programming.
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Articles |
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28 Oct 2008 |
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Lazy Linux: 11 secrets for lazy cluster admins
"Cluster" means different things to different people. In the context of
this article, cluster is best defined as "scale-out" -- scale-out clusters
generally have a lot of the same type of components like
Web farms, render farms, and high performance computing (HPC) systems.
Administrators will tell you that with scale-out clusters any change, no
matter how small, must be repeated up to hundreds of thousands of times; the
laziest of admins have mastered techniques of scale-out management so that
regardless of the number of nodes, the effort is the same. In this article,
the authors peer into the minds of the laziest Linux admins on Earth and
divulge their secrets.
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Articles |
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22 Oct 2008 |
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Shut down idle computers on your network automatically
Learn how to use Argus and client/server Perl code to monitor your network connections and
shut down machines no longer in use.
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Articles |
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21 Oct 2008 |
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Apple iPhone-related articles and tutorials at developerWorks
Learn more about developing Web applications for the iPhone.
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21 Oct 2008 |
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Build server-side mashups with Geronimo and REST
Discover the techniques and technologies you can use
to build a mashup application using Apache Geronimo, a REST-based protocol, and data
from multiple sources. The mashup combines data from Google Maps and Twitter tweets to
pinpoint Twitter users as they update their Twitter status.
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Articles |
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21 Oct 2008 |
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Customize a Google Maps result page with Google Mapplets
A Google Mapplet is an application that runs inside a Google Maps results
page and lets you add your own custom information and behavior to the page and the
map. In this tutorial, you will write a Google Mapplet that uses the Yahoo
Weather RSS feed to display the local weather in Google Maps. To demonstrate
different techniques while using the Google Mapplets API, you'll implement two solutions. The first is on the client side and uses RSS and JavaScript. The second is on the server side and uses XSLT, PHP, KML, and JavaScript.
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Tutorials |
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21 Oct 2008 |
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PHP and .Net Web development for U2 using Web DE / RedBack objects
IBM U2 Web DE, U2 Web Development Environment (previously called
RedBack), is a Web framework for accessing UniVerse and UniData databases. In
this article, examine the history and essential framework of Web DE, and learn
how PHP and .NET can reference Web DE RedBack Objects (RBOs) to access U2 data
stores in a similar way that ASP and Java technology can use them.
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Articles |
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16 Oct 2008 |
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Equinox p2 cures Eclipse plug-in headaches
This article explores the new features of Equinox p2, which debuted in Eclipse
V3.4. It looks at the pitfalls of the update manager user interface (UI) that was
available in earlier versions of Eclipse and shows how the Equinox p2 framework is an
improvement. Specifically, it shows how to use the new features in the Equinox p2
framework to install Eclipse and its plug-ins.
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Articles |
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14 Oct 2008 |
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Cloud computing with Amazon Web Services, Part 3: Servers on demand with EC2
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions
provided by boto, an open source Python library for interacting
with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. This article introduces you to the
virtual servers provided by Amazon Elastic Compute Cloud (EC2).
Learn how EC2 can help you configure your applications' computing requirements
on the fly and adjust capacity based on demand.
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Articles |
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14 Oct 2008 |
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Create a Yahoo! SearchMonkey application
SearchMonkey is one of the first attempts from a major search engine to make
use of Semantic Web technologies to enhance search results. In this tutorial, you
will implement a Yahoo! SearchMonkey application that enhances blogger.com search
listings to include other information about the blog and blog owner. You will
first implement a basic application using the default data available from Yahoo!.
Then you will create a custom data service to provide your own structured data to
SearchMonkey before you develop a more advanced application that takes advantage of this new custom data service.
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Tutorials |
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14 Oct 2008 |
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Programmability, Part 1: Exploring different approaches to programming for Cell/B.E. platforms
The programming flexibility available for the Cell Broadband Engine(TM) is a
hot topic in the multicore community. This article discusses leveraging your existing
skills to program for Cell/B.E.(TM), offers three programming approaches for Cell/B.E.
systems, and introduces the various tools, software, and hardware available
for the platform.
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Articles |
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14 Oct 2008 |
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Write a Firefox extension to rotate images in online mapping applications
Learn how to use JavaScript and the Imager Perl module to interface with a Firefox extension for rotating image tiles in Google Maps.
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Articles |
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14 Oct 2008 |
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Separate content from presentation with XSLT, SimpleXML, and PHP 5
Over the years, developers have devised many strategies and frameworks to
facilitate the separation of business logic and presentation logic. In this
tutorial, you will explore two solutions to separating data and business logic
from presentation logic: one using XSLT through the XSL module in PHP 5 and the
other using the SimpleXML module in PHP 5. To do this, you'll use a Web page for a personal resume stored as an XML file as an example.
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Tutorials |
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07 Oct 2008 |
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Real Web 2.0: Mastering the Creative Commons
The Creative Commons (CC) initiative develops popular licenses for content, including Web
content. Some people think using these licenses means giving up all your rights to content,
but this is just one of many misconceptions. Learn how to choose and use CC licenses for your
Web sites and applications and how to process these licenses in
code.
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Articles |
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07 Oct 2008 |
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Getting started with Eclipse code templates
This tutorial covers the basic use of Eclipse code templates. It takes a broad
approach to expose the key concepts and skills that apply to templates regardless of
the particular plug-in they're associated with. You will learn about the benefits of
templates, how to create and edit them, and how to use them within the Eclipse IDE to increase your productivity.
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Tutorials |
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07 Oct 2008 |
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Automation for the people: Parallel development for mere mortals
Although many development teams use version-control systems to manage code changes, they can struggle when developers code off the same code base, in parallel. In this Automation for the people installment, automation expert Paul Duvall shows how to effectively tag, branch, and merge source code using the open source, freely available Subversion version-control system.
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Articles |
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07 Oct 2008 |
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Cross-platform development with JRuby and Swing
In addition to building Web and console applications with Ruby, you can write complex GUI desktop applications that run unmodified on multiple platforms. Thanks to JRuby, a robust alternative to the traditional C implementation of Ruby, Ruby GUI toolkits can use UI tools available to the Java platform. This article introduces Monkeybars, a library that uses JRuby and Swing for building applications, and takes you through an example application.
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Articles |
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07 Oct 2008 |
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Develop a dynamic location-based mashup
Mashups are a new, highly interactive Web development methodology. Essentially a mix
of related content put together from disparate sources, mashups provide rich dynamic content
for a superb user experience. Getting Asynchronous
JavaScript + XML (Ajax) and mashup chops into your development toolbox will
benefit you with high demand in the evolving Web 2.0
workspace.
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Tutorials |
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07 Oct 2008 |
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Create a continuous keystroke-dynamics monitor with Perl and xev
Learn how to use Perl, xev, and custom algorithms to monitor who is currently at the keyboard based on characteristic typing patterns.
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Articles |
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07 Oct 2008 |
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Colabore e desenvolva em tempo real utilizando Rational Team Concert
O IBM Rational Team Concert é um ambiente de entrega de software colaborativo que confere poderes a equipes de
projetos para simplificar, automatizar e controlar a entrega de software. Neste tutorial, você vai importar um aplicativo de amostra
do Google Web Toolkit (GWT) no Rational Team Concert utilizando Subversion, que permite que você aproveite as vantagens dos vários
recursos do Rational Team Concert. No processo, falaremos sobre colaboração, gerenciamento de origem, desenvolvimento ágil e aspectos
de gerenciamento de tarefas do Rational Team Concert.
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Tutorial |
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06 Oct 2008 |
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Deploy an SCA application using the Tuscany domain manager
Service Component Architecture (SCA) lets you develop and assemble
Service-Oriented Architecture (SOA) solutions that are comprised of independent components, regardless of their
implementation and environment. SCA is a major SOA initiative and is becoming
an OASIS standard. Apache Tuscany provides an easy-to-use open source
infrastructure for the development and operation of SCA applications. This article
shows you how to administer an SCA domain using a Tuscany Web-based domain
manager UI and code, and how to use the domain administrative UI to deploy an
SOA solution comprised of SCA components.
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Articles |
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02 Oct 2008 |
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Seven habits for writing secure PHP applications
Security in a PHP application includes remote and local security concerns.
Discover the habits PHP developers should get into to implement Web applications that have both characteristics.
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Articles |
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30 Sep 2008 |
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Design and implement POJO Web services using Spring and Apache
CXF, Part 2: Create a RESTful Web service
Create a RESTful Web service, which is defined as a
Spring bean, using Apache CXF,
an open source Web service framework. This article explores the features and benefits of using the
Representational State Transfer (REST) architecture and illustrates the use of the REST API in CXF to easily
develop a RESTful service.
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Articles |
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25 Sep 2008 |
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Offline Ajax with Apache Derby
People love Ajax applications so much that they are willing to use them instead
of their desktop equivalents. The only problem occurs when they fail to have network
access. This is when an offline feature is necessary. Apache Derby is a great option
for enabling offline access to Ajax-powered applications. Learn how to use Apache Derby
as a local data store that can be used to take your Ajax application offline.
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Articles |
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23 Sep 2008 |
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Enhance image overlay maps in Google Earth with altitude attributes
Use Perl and the Imager module to enhance mapping applications by extracting and
applying height information based on color to reveal a third dimension of data, showing more information in the same space.
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Articles |
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23 Sep 2008 |
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Develop PHP applications with Picasa Web Albums
Search, retrieve, add, modify, and delete photos in a Google Picasa web album with Picasa Web Albums REST-based Data API, the SimpleXML extension in PHP, and Zend's GData Library. In this article, find practical examples using ATOM feeds from the API along with PHP programs to process your photos and photo metadata.
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Articles |
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16 Sep 2008 |
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Using Eclipse Ganymede to develop for the desktop, Web and mobile devices,
Part 3: Developing for the Embedded Rich Client Platform, the Ganymede way
Eclipse Ganymede is the simultaneous release of 24 major Eclipse IDE projects.
This three-part "Using Eclipse Ganymede to develop for the desktop, Web and mobile
devices" tutorial series covers the following new Ganymede features: RCP,
RAP, and eRCP, which allow you to develop software for the desktop, Web, and mobile
platforms, respectively, with one common code base -- Subversion for version control;
and p2 for update and installation. In this tutorial, we further enhance the
personal organizer developed in Parts 1 and 2, and modify it to be deployed on a
mobile device by using the Embedded Rich Client Project (eRCP).
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Tutorials |
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16 Sep 2008 |
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Mastering Grails: RESTful Grails
We live in the era of mashups. Creating Web pages that give users the information they
want is a good start, but offering a source of raw data that other Web developers can
easily mix in with their own applications is better. In this installment of Mastering Grails, Scott Davis introduces various ways to get Grails to produce XML instead of the usual HTML.
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Articles |
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16 Sep 2008 |
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API Tools in Eclipse: An introduction
Crafting Application Public Interface (API) and especially managing API among different releases is difficult.
Learn how to take advantage of Eclipse's PDE API Tools to make this process easier and
seamlessly integrated into your daily development. Note that this article is specific
to Eclipse V3.4: Ganymede.
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Articles |
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16 Sep 2008 |
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Running Caucho’s Quercus PHP Java interpreter on WebSphere Application Server for z/OS with DB2 UDB for z/OS
PHP is one of the most common Web scripting languages. This article shows the quickest way to use PHP with WebSphere for z/OS, in just a few simple steps. You can even run it on the IBM System z Application Assist Processor (zAAP) with no additional software costs, and connect it to DB2 UDB for z/OS.
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Articles |
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10 Sep 2008 |
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Enhancing multi-screen user interfaces using Ghosd and Synergy
Unlike traditional single-screen setups, multi-screen display systems require
special consideration for user interfaces (UIs). This article presents tools and code
designed to address the acquisition and change of input focus across multiple displays.
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Articles |
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09 Sep 2008 |
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Overlay data on maps using XSLT, KML, and the Google Maps API, Part 2: Transform and use the data
In this two-part article series, you'll develop an application for a real
estate brokerage to display all available apartment listings as clickable
Placemarks on Google Maps. In Part 1, you created the first half of the
application that collects the apartment listing information from the user, uses
the Google Geocoder Web service to turn the street address into its geographical
coordinates (longitude and latitude), and stores the coordinates in the database
along with the address information. In Part 2, you will use this data to produce a
KML overlay document and display it in Google Maps and Google Earth. First, you'll use stored procedures to produce XML from MySQL. Then with XSLT and a technique called Muenchian grouping, you'll transform the XML data into a KML document containing the overlay information -- one Placemark for each apartment building. The pop-up balloon for each Placemark displays the available apartment listings in that building. Finally, you'll use the Google Maps API to display the KML overlay in a Google Map embedded within your own Web site.
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Articles |
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09 Sep 2008 |
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Using Eclipse Ganymede to develop for the desktop, Web and mobile devices,
Part 2: Developing for the Rich Client Platform, the Ganymede way
The Ganymede release of the Eclipse IDE includes 24 separate projects, covering a wide
range of technologies. Many of these projects are mature, and this release provides
incremental improvements to those. But Ganymede also includes a number of new projects
that introduce new technologies to the Eclipse platform. In this three-part "Using
Eclipse Ganymede to develop for the desktop, Web and mobile devices" tutorial
series, we will cover the following new Ganymede features: RCP, RAP, and eRCP, which
allow you to develop software for the desktop, Web, and mobile platforms, respectively,
with one common code base; Subversion for version control; and p2 for update and
installation. Here in Part 2, we will take the personal organizer developed in Part 1,
and modify it to use the new Rich Ajax Platform (RAP) to package and distribute the application on the Web.
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Tutorials |
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09 Sep 2008 |
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Setting up your own on-demand video site with PHP, Part 3: Integrating YouTube
Setting up your own on-demand video site doesn't have to be complicated.
Upload some videos and put them up for people to watch -- easy
enough. But if you're going to be doing a lot of videos, you'll need a way to
keep them organized. This three-part series takes you through everything
you need to know to create video optimized for the Web, as well as creating a
PHP application that will help keep your videos organized and accessible. Part
1 lays the groundwork by assembling and installing the necessary components and
gathering and converting the video. Part 2 builds the basic application. Here
in Part 3, you add create a slick user interface and integrate the example with YouTube.
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Tutorials |
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02 Sep 2008 |
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Using Eclipse Ganymede to develop for the desktop, Web and mobile devices, Part 1: Developing for the Rich Client Platform, the Ganymede way
The Ganymede release of Eclipse includes 24 separate projects, covering a wide
range of technologies. Many of these projects are mature, and this release provides
incremental improvements to those. But Ganymede also includes a number of new projects
that introduce new technologies to the Eclipse platform. In this three-part "Using
Eclipse Ganymede to develop for the desktop, Web and mobile devices" tutorial
series, we will cover the following new Ganymede features: RCP, RAP, and eRCP, which
allow you to develop software for the desktop, Web, and mobile platforms, respectively,
with one common code base; Subversion for version control; and p2 for update and
installation. Here in Part 1, we will use the mature Rich Client Platform (RCP) to
develop an application for the desktop using Subversion for source control, and we will
package and distribute the application using p2.
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Tutorials |
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02 Sep 2008 |
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Build Ajax-based Web sites with PHP
Learn the process of writing Asynchronous JavaScript + XML
(Ajax) applications using native JavaScript code and PHP. This article introduces a few different
frameworks and application program interfaces (APIs) that reduce the amount of code you need
to write to achieve a complete Ajax-based Web application.
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Articles |
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02 Sep 2008 |
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Rapid prototyping with Apache Derby and JRuby on Rails
Ruby on Rails has raised the bar in terms of rapid development of data-driven
Web sites. The JRuby project is making Ruby faster and more scalable than ever. One of
the great advantages to running Rails on the Java Virtual Machine is that you can
leverage other Java libraries, like the Apache Derby embedded database. The combination
of Derby, JRuby, and Rails allows for rapid prototyping of dynamic Web applications. Learn how to use these technologies together to help you prototype your next great idea.
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Articles |
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26 Aug 2008 |
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Getting started with CodeIgniter
Creating a CodeIgniter application is easier than you might think. Take a guided tour
through your first project: a simple Web page with a contact form.
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Articles |
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26 Aug 2008 |
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Create time-availability maps with Perl and Google Earth
Time-availability maps provide a listing of who is most likely to be available
for a certain hour in a certain location. Find out how to use Google Earth and a log of
your communications to map and identify the time and place when availabilities match.
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Articles |
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26 Aug 2008 |
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The Java XPath API
Elliotte Rusty Harold demonstrates Java 5's new XPath API.
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Articles |
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25 Aug 2008 |
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Create BlackBerry applications with open source tools, Part 1: Laying the groundwork
There is perhaps no bigger market-transformational technology than the cell
phone. And within that classification of devices, perhaps none more recognizable than
the BlackBerry from Research In Motion (RIM). Most people think it is just for business
e-mail, but there is untapped potential in that addictive device. Despite being a
popular platform, third-party applications are still needed for the BlackBerry
platform. There is no better way to bring those applications to fruition than to
enable the help from the open source community. Follow along as this tutorial lays the
groundwork for an open source data-collection application, upon which an accessible and
easy-to-use data-collection service is built.
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Tutorial |
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19 Aug 2008 |
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Cloud computing with Amazon Web Services, Part 2: Storage in the cloud with Amazon Simple Storage Service (S3)
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions
provided by boto, an open source Python library for interacting
with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. This article delves into the highly
scalable and responsive services provided by Amazon Simple Storage Service (S3).
Learn about tools for interacting with S3, and use code samples to experiment
with a simple shell.
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Articles |
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19 Aug 2008 |
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Developing software on an open source stack
Web developers are enjoying a renaissance. After spending much of the previous
decade toiling on server-centric code, programmers are now putting code
front-and-center, turning the Web browser into its own computing platform. Much of the
renaissance must be attributed to ingenuity. The newest generation of tools and
application frameworks automate and simplify the drudgery of building, deploying, and
maintaining a Web site. There are also more tools than ever, and all the most
innovative tools are open source. This tutorial provides an expansive survey of the free
software available to developers to create and deploy Web applications.
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Tutorials |
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19 Aug 2008 |
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Creating mashups on the Google App Engine using Eclipse, Part 3: Using RESTful Web services
Social networks are making it easier to take data and mash it up to create
innovative Web applications. You still, however, must deal with all the usual issues
with creating a scalable Web application. Now the Google App Engine (GAE) makes that
easier for you. With it, you can forget all about managing pools of application servers,
and, instead, you can concentrate on creating a great mashup. In this article, the
last of a three-part "Creating mashups on the Google App Engine using Eclipse" series, we will take the
application built in the first two parts and further enhance it. We will add the
ability to view other users of the app and subscribe to their aggregate feeds. We
will then complete the mashup circle by exposing the app as a Web service that can be used by other mashups.
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Articles |
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19 Aug 2008 |
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Creating mashups on the Google App Engine using Eclipse, Part 2: Building the Ajax mashup
Social networks are making it easier to take data and mash it up to create
innovative Web applications. You still, however, must deal with all the usual issues
with creating a scalable Web application. Now the Google App Engine (GAE) makes that
easier for you. With it, you can forget all about managing pools of application servers,
and, instead, you can concentrate on creating a great mashup. In this article, the
second of a three-part "Creating mashups on the Google App Engine using Eclipse" series, we will take the application we built in Part 1 and
enhance it. We will improve its performance by using more data-modeling features of
GAE. We will then take that performance even further by using GAE's Memcache services.
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Articles |
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12 Aug 2008 |
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Mastering Grails: The Grails event model
Everything in Grails, from build scripts to individual artifacts such as domain classes and controllers, throw events at key points during an application's life cycle. In this Mastering Grails installment, you'll learn how to set up listeners to catch these events and react to them with custom behavior.
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Articles |
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12 Aug 2008 |
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Easy Ruby development, the Eclipse way
Almost three years ago, developerWorks published "Using the Ruby
Development Tools plug-in for Eclipse," which introduced some of the features
found in the Ruby Development Tools (RDT) plug-in for Eclipse. Current at the
time was V0.5. We revisit that tool in this article. Today, RDT is called
Aptana RadRails and is available as a plug-in for Aptana Studio or Eclipse.
This article introduces some of the plug-in's new features.
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Articles |
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12 Aug 2008 |
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Beef up the Find command in Firefox
The Find command in Firefox locates the user-specified text in the body of a Web
page. The command is an easy-to-use tool that works well enough for most users most of
the time. Sometimes, however, a more powerful Find-like tool would make locating text
easier. This article shows how to build a tool that isolates relevant text in Web pages
faster by detecting the presence and absence of nearby words.
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Articles |
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12 Aug 2008 |
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Building a greener IT department
"Green," "eco-friendly," and "carbon footprint" are buzzwords that are
frequently used to describe a company's level of environmental responsibility.
But how to be more green in the IT world is a more complex matter. In this
article, get some ideas that can help any IT department lessen its impact on
the environment.
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Articles |
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05 Aug 2008 |
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Create a productivity package with the Zend Framework V1.5 and Google
Apps, Part 3: Getting started with Zend Framework V1.5
In this three-part "Create a productivity package with the Zend Framework V1.5
and Google Apps" tutorial series, you will build an example Web site using Zend
Framework V1.5 to connect to several Google productivity applications. So far,, we've
built a basic Web site using the new features of the Zend Framework V1.5, such as
enhancements to the Zend_View and Zend_Form components. We then looked at Zend_Gdata
and to link our Web site to Google Base data. Here in the final part of the series, we
see how to link to Google Calendar, Google Docs, spreadsheets, Picasa, and YouTube. We
use these tools to provide a dashboard for our Web
site. This dashboard allows users to display upcoming events and documents, as well as
giving them the ability to add events and documents to the Google account.
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Tutorials |
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05 Aug 2008 |
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Automation for the people: Hands-free database migration
Databases are often out of sync with the applications they support, and getting the database and data into a known state is a significant challenge to manage. In this installment of Automation for the people, automation expert Paul Duvall demonstrates how the open source LiquiBase database-migration tool can reduce the pain of managing the constant of change with databases and applications.
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Articles |
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05 Aug 2008 |
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Creating mashups on the Google App Engine using Eclipse, Part 1: Creating the application
Tapping into social software can be a great way to add value to your
application. Social networks are making it easier to take data and mash it up to
create innovative new Web applications. However, you must still deal with all the
usual issues of creating a scalable Web application. Now the Google App Engine (GAE)
makes that easier, as well. With the GAE, you can forget all about managing pools of
application servers. You do not have to worry about storing huge amounts of static
content and dynamic data. Instead, you can concentrate on creating a great mashup. In
this article, the first of a three-part "Creating mashups on the Google App Engine using
Eclipse" series, we see how to get started developing GAE applications, and we will
take a look at how to use Eclipse to make GAE development even easier.
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Articles |
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05 Aug 2008 |
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What's new in WebSphere Application Server Community Edition V2.1
Explore the new features in WebSphere Application Server Community Edition V2.1,
including the ability to execute Geronimo commands using GShell, create multiple
server assemblies from you own set of servers, and fully control the server through
Expert mode and a new Monitoring portlet. This release improves on what is already the
most powerful open source application server available.
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Articles |
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29 Jul 2008 |
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| |
Cloud computing with Amazon Web Services, Part 1: Introduction
Learn basic Amazon SimpleDB (SDB) concepts and explore some of the functions
provided by boto, an open source Python library for interacting
with SDB. In this "Cloud computing with Amazon Web Services" series, learn about cloud computing using Amazon Web Services. Explore how the services provide a compelling alternative for architecting and building scalable, reliable applications. This first article explains the features of the
building blocks of
this virtual infrastructure. Learn how you can use Amazon Web Services to build
Web-scale systems.
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Articles |
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29 Jul 2008 |
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| |
Create a productivity package with the Zend Framework V1.5 and Google
Apps, Part 2: Getting started with Zend Framework V1.5
In this three-part "Create a productivity package with the Zend Framework V1.5
and Google Apps" tutorial series, you will build an example Web site using Zend
Framework V1.5 to connect to several Google productivity applications. In Part 1, we put
together the basic Web site using the Zend Framework, and we learned how to optimize
the Web site for future maintenance. Here in Part 2, we look at using the Zend_Form and
Zend_Gdata components of the Zend Framework to handle user authentication and
registration, Ajax with the jQuery JavaScript library, and integration with Google Base.
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Tutorials |
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29 Jul 2008 |
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Design and implement POJO Web services using Spring and Apache
CXF, Part 1: Introduction to Web services creation using CXF and Spring
Create a plain old Java object (POJO)-style Web service easily using Apache CXF, an open source Web service
framework. This article, Part 1 of a series,
shows you how to expose POJOs as Web services
using Spring and CXF. It also illustrates CXF integration with the Spring Framework.
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Articles |
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24 Jul 2008 |
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Using the Ruby Development Tools plug-in for Eclipse
This article introduces using the Ruby Development Tools (RDT) plug-in for Eclipse, which allows Eclipse to become a first-rate Ruby development environment. Ruby developers who want to learn how to use the rich infrastructure of the Eclipse community to support their language will benefit, as will Java developers who are interested in using Ruby.
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Articles |
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24 Jul 2008 |
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Use XStream to serialize Java objects into XML
XML serialization has a myriad of uses, including object persistence and data transport. However, some XML-serialization technologies can be complex to implement. XStream is a lightweight and easy-to-use open source Java library for serializing Java objects to XML and back again. Learn how to set up XStream, and discover how to use it to serialize and deserialize objects as well as to read configuration properties from an XML configuration file.
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Articles |
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23 Jul 2008 |
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Give Apache Geronimo a Lift
Lift is a new Web application framework. It is a highly scalable framework built
on the Scala programming language. It is the perfect partner for a highly scalable
application server, such as Apache Geronimo, especially since Scala compiles to byte
code just like the Java language and leverages the Java platform. In this article, you
will learn how to create a Web application using Lift and deploy it to Geronimo.
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Articles |
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22 Jul 2008 |
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Use Ext, Aptana, and AIR to build desktop applications
While Rich Internet Applications and Web 2.0 have been all the rage, the latest
wave of emerging technologies are focusing on not only giving Web applications a
desktop-like feel but actually bringing them to the desktop. The Adobe Integrated
Runtime (AIR) has led the way, allowing Web application developers to leverage their
existing knowledge of HTML, CSS, JavaScript, Flash, and Flex to build powerful desktop
applications. In this tutorial, you will use the open source Aptana Studio IDE, the
Adobe AIR plug-in for Aptana, and the open-source JavaScript framework Ext.
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Tutorials |
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22 Jul 2008 |
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Build a RESTful Web service
Representational state transfer (REST) is a style of designing loosely coupled applications that rely on named resources rather than messages. The hardest part of building a RESTful application is deciding on the resources you want to expose. Once you've done that, using the open source Restlet framework makes building RESTful Web services a snap. This tutorial guides you step-by-step through the fundamental concepts of REST and building applications with Restlets.
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Tutorials |
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22 Jul 2008 |
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Developing iPhone applications using Ruby on Rails and Eclipse, Part 3: Developing advanced views for iPhone
The iPhone and iPod touch made Mobile Safari the most popular mobile browser in
the United States. Although Mobile Safari is more than adequate at rendering normal Web
pages, many Web developers created versions of applications aimed at the iPhone. Here
in Part 3 of this "Developing iPhone applications using Ruby on Rails and Eclipse"
series, we learn what you should do when the user reaches the end of the list structure
and your application actually needs to display some content
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Articles |
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15 Jul 2008 |
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Integrate encryption into Google Calendar with Firefox extensions
Today's Web applications provide many
benefits for online storage, access, and collaboration. Although some applications offer
encryption of user data, most do not. This article provides tools and code needed to add
basic encryption support for user data in one of the most popular online calendar
applications. Building on the incredible flexibility of Firefox extensions and the Gnu
Privacy Guard, this article shows you how to store only encrypted event descriptions in
Google's Calendar application, while displaying a plain text version to anyone with the
appropriate decryption keys.
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Articles |
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15 Jul 2008 |
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Debug iPhone Web applications with Eclipse
Learn how to debug Asynchronous JavaScript + XML (Ajax) Web applications using
Eclipse, Aptana's iPhone Development plug-in, Aptana's Firefox JavaScript debugger, and Firebug.
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Tutorials |
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15 Jul 2008 |
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Mastering Grails: Grails and legacy databases
In this Mastering Grails installment, Scott Davis explores the various ways that Grails can use database tables that don't conform to the Grails naming standard. If you have Java classes that already map to your legacy databases, Grails allows you to use them unchanged. You'll see examples that use Hibernate HBM files and Enterprise JavaBeans 3 annotations with legacy Java classes.
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Articles |
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15 Jul 2008 |
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Integrate your PHP application with Google Calendar
Google Calendar allows Web application developers to access user-generated
content and event information through its REST-based Developer API. PHP's SimpleXML
extension and Zend's GData Library are ideal for processing the XML feeds generated
by this API and using them to build customized PHP applications. This article
introduces the Google Calendar Data API, demonstrates how you can use it to browse user-generated calendars; add and update calendar events; and perform keyword searches.
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Articles |
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08 Jul 2008 |
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Automation for the people: Continual refactoring
Refactoring is a well-accepted practice for improving existing code.
Yet, how do you find the code that should be refactored, in a consistent and
repeatable manner? In this installment of Automation
for the people, you'll learn how to use static analysis tools to identify code smells to refactor, with examples showing how to improve odiferous code.
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Articles |
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08 Jul 2008 |
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Apache Geronimo on Grails
Do you want to build your Web sites faster and cheaper, but still leverage
industrial-strength technology? You can do just that using Grails and Apache Geronimo.
Grails leverages the power of the dynamic language Groovy to accelerate your
development. However, it runs on the Java Virtual Machine and leverages proven Java
technologies. This makes it easy to take your Grails application to the next level by
deploying it to Apache Geronimo, the premiere open source Java EE V5-certified
application server. In this article, you will see how easy Grails can make Web
development and how easy Geronimo can make Grails deployment. You will also see how a
Grails application can leverage the resources and services provided by Geronimo.
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Articles |
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08 Jul 2008 |
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Developing iPhone applications using Ruby on Rails and Eclipse, Part 2: Displaying iPhone content to the client
The iPhone and iPod touch made Mobile Safari the most popular mobile browser in
the United States. Although Mobile Safari is more than adequate at rendering normal Web
pages, many Web developers created versions of applications aimed at the iPhone. Here in Part 2 of this "Developing iPhone
applications using Ruby on Rails and Eclipse" series, we learn the common use of
drill-down lists as a navigation method
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Articles |
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08 Jul 2008 |
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Architecting intrusion-detection solutions
Intrusion-detection systems (IDSs) have become an increasingly important part of the
security strategy of many organizations. An IDS plays a key role in the concept of
defense-in-depth, being only one of several deployed countermeasures designed to deter,
slow down, and detect an attack before it occurs or before more serious actions occur.
Discover the different types of IDSs and what types of attacks each can detect (or not
detect), and see issues to consider when planning an IDS deployment.
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Articles |
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01 Jul 2008 |
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Advanced charting in BIRT
Since 2004, the Eclipse-based Business Intelligence and Reporting Technology
(BIRT) community has grown and gained massive success. This success is growing as more
users are starting to integrate with BIRT technology to present business data. A
key reason for this success is that users are discovering the rich BIRT reporting
components. The BIRT charting capabilities is one of the rich components that allow the
end user to uncover trends in data to answer business
questions. BIRT provides extensive interactive charting and other advanced features to
allow report developers to create professional-looking reports.
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Tutorials |
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01 Jul 2008 |
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Getting graphic with PHP
Imagine creating Web-page graphics dynamically using just code -- no need for a
complex graphics program. Creating and manipulating images is yours for the doing with
the power of PHP. Put your coding skills to work generating images for the Web.
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Tutorials |
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01 Jul 2008 |
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Build Web services with PHP in Eclipse
Learn how to build Web services in PHP using the PHP Development Tools (PDT)
plug-in in Eclipse in three easy steps. First, become familiar with the PDT project, and
learn how to create and deploy useful PHP projects. Second, learn the philosophy behind
contract-first development. Finally, get an informative overview of the basic parts
that make up a Web Services Description Language (WSDL) file.
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Tutorials |
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01 Jul 2008 |
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Interfacing with the CDT debugger, Part 2: Accessing gdb with the Eclipse CDT and MI
The graphical debugging environment provided by the Eclipse C/C++ Development
Tooling (CDT) is about as good as it gets, displaying breakpoints, watchpoints,
variables, registers, disassembly, signals, and memory contents. You can add new
capabilities to this environment or access these views to display output from a custom
debugger. But first, you need to understand the C/C++ Debugger Interface (CDI) and how
it communicates with Eclipse. Part 1 describes the CDI at a high level, and this
article presents a practical example: How the CDT uses the CDI and the Machine
Interface (MI) to interface the GNU Debugger.
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Articles |
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24 Jun 2008 |
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Create a productivity package with the Zend Framework V1.5 and Google Apps, Part 1: Getting started with Zend Framework V1.5
Google Apps provides amazing productivity tools. From sharable calendars,
collaborative documents and spreadsheets to even a database, they have reinvented what
one can do in the Web browser. Zend Framework V1.5 provides an API to connect to these
services to extend what these tools offer. In this three-part "Create a productivity
package with the Zend Framework V1.5 and Google Apps" tutorial series, we will
build an application with Zend Framework V1.5 that uses Google Apps. Here
in Part 1, we explore the various features of the Zend Framework, outlining the many
new features in V1.5 that we will take advantage of to build an example Web site.
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Tutorials |
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24 Jun 2008 |
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Eclipse Ganymede at a glance
The Eclipse Ganymede release of 24 projects showcases the diversity and
innovation going on inside the Eclipse ecosystem. Get an overview of several Ganymede
projects, along with resources to find out more information.
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Articles |
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20 Jun 2008 |
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Debugging PHP using Eclipse and PDT
The PHP Development Tools (PDT) plug-in, when installed with Eclipse Europa,
gives you that ability to quickly write and debug PHP scripts and pages. PDT supports
two debugging tools: XDebug and the Zend Debugger. Learn how to configure PDT for
debugging PHP scripts and discover which perspectives you use when taking closer looks at your scripts.
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Tutorials |
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17 Jun 2008 |
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Eclipse: Empowering the universal platform
Watch an installation of Eclipse 3.3, Java JDK 5.0, IBM
Cloudscape V10.1, and Apache Tomcat V5.5. This demo is part of a seven part series
from a developerWorks Live! briefing. The demo series shows you how to use open source technologies (with focus on Eclipse) to create a powerful development environment.
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Demos |
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11 Jun 2008 |
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Visualizing time-dependent data with distortion portals
Create an SDL-enabled application that allows you to create distortion portals
in sequential image frames to explore the relationship of data sets through time.
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Articles |
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10 Jun 2008 |
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Automation for the people: Pushbutton documentation
Project documentation is often one of the necessary evils in delivering a software product. But imagine being able to generate your documentation at the click of a button. In this installment of Automation for the people, automation expert Paul Duvall explains how you can use open source tools to automate the generation of Unified Modeling Language (UML) diagrams, build figures, entity-relationship diagrams (ERDs), and even user documentation.
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Articles |
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10 Jun 2008 |
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Interfacing with the CDT debugger, Part 1: Understand the C/C++ debugger interface
The Eclipse C/C++ Development Tooling (CDT) is one of the most well-known open
source environments for C/C++ development, and its full-featured debugger plays a large
role in its popularity. What isn't as well known is that the CDT framework can be
extended to support custom debuggers. With the right plug-in, a custom debugger can
access the full spectrum of the CDT's graphical debugging environment: code-stepping,
watchpoints, breakpoints, register contents, memory contents, and variable views. Learn
how to construct this plug-in, with a focus on the C/C++ Debugging Interface (CDI).
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Articles |
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10 Jun 2008 |
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Reuse Java code in your Ruby on Rails applications
The Ruby Java Bridge (RJB) lets you load Java classes directly
to, and call them from, Ruby on Rails applications. This tutorial shows how you can
put this toolkit to work by reusing your legacy Java Web application code in a modern Web development platform.
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Tutorials |
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05 Jun 2008 |
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Add multitouch gesture support to a TouchPad-equipped laptop
Enable swipe and pinch gestures for Linux applications by analyzing synclient
program output for a Synaptics TouchPad.
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Articles |
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03 Jun 2008 |
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Embed the NASA World Wind Java SDK in Eclipse
The open source World Wind Java (WWJ) SDK by NASA creates new possibilities for the open Geographic Information Systems (GIS) community. World Wind, a 3D interactive world viewer written in the Java language and OpenGL, lets users zoom from outer space into any place on Earth. This article explains how GIS developers who want to enhance their Eclipse-based applications can embed the WWJ SDK as an Eclipse plug-in.
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Articles |
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03 Jun 2008 |
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Developing iPhone applications using Ruby on Rails and Eclipse, Part 1: Serving content for iPhones
The iPhone and iPod touch made Mobile Safari the most popular mobile browser in
the United States. Although Mobile Safari is more than adequate at rendering normal Web
pages, many Web developers created versions of applications aimed at the iPhone. This
"Developing iPhone applications using Ruby on Rails and Eclipse" series shows how to use
Ruby On Rails on the server side to identify and serve custom content to Mobile Safari.
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Articles |
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03 Jun 2008 |
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Meet the JavaScript Development Toolkit
The JavaScript Development Toolkit (JSDT) is an open source plug-in that brings
robust JavaScript programming tools to the Eclipse platform. JSDT streamlines
development, simplifies code, and increases productivity for pure JavaScript source
files and JavaScript embedded in HTML.
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Articles |
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27 May 2008 |
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Build software with Gant
Gant is a highly versatile build framework that leverages both Groovy and Apache Ant to let you implement programmatic logic while using all of Ant's capabilities. In this tutorial, Andy Glover guides you step-by-step through Gant's fundamental concepts. You'll learn how to define behavior in your build through Gant's flexible domain-specific language, how to reuse Ant features, and how to define functions that make your builds more efficient and even proactive.
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Tutorials |
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27 May 2008 |
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Open an Eclipse Rich Client Platform application from a URL
Imagine being able to navigate to the rich function of a Rich Client Platform
(RCP) application just as easily as you can navigate to a Web page today. Follow along
to enable the opening of specific business objects in your Eclipse RCP application simply by clicking a URL.
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Articles |
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27 May 2008 |
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Setting up your own on-demand video site with PHP, Part 2: Basic structure
Setting up your own on-demand video site doesn't have to be complicated. Upload
some videos and put them up for people to watch. Easy enough. But if you're going to be
doing a lot of videos, you'll need a way to keep them organized. This three-part
"Setting up your own on-demand video site with PHP" tutorial series will take you
through what you need to know to create video optimized for the Web, as well as
creating a PHP application that will keep your videos organized and readily accessible.
Part 1 lays the groundwork by assembling and installing the necessary components, and
gathering and converting the video. Part 2
builds the basic application using CakePHP.
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Tutorials |
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20 May 2008 |
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Implement Semantic Web standards in your Web site
With Yahoo's recent announcement that they will implement support of
Semantic Web standards in their search engine, the benefits that the Semantic Web
has for your site have never been clearer. In addition to the existing benefits such as your structured content giving you a free, open-ended API, you now get the opportunity for increased search rankings, and more importantly, increased relevance because the search engine can better understand what the content of your site is about. In this tutorial you will learn to implement a simple social networking site using PHP and MySQL, which will implement Semantic Web standards such as hCard and Friend of a Friend (FOAF) as part of a semantic Uniform Resource Identifier (URI) scheme.
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Tutorials |
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20 May 2008 |
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Process and integrate Google Notebook data with PHP
Google Notebook is a free service that allows users to save and share notes and Web clippings in an online journal. A REST-based API allows developers to build customized PHP applications around this service using SimpleXML. In this article, you learn how to use the API, with examples of reading notebooks
and notebook contents using PHP.
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Articles |
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20 May 2008 |
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Picking the right Eclipse distribution for you
Which Eclipse distribution is right for you? Commercial distributions (distros) based on Eclipse
Europa offer different features and conveniences. Many commercial ones also
offer free or community editions to download and use. This article compares the
CodeGear JBuilder 2008 Turbo trial version, nexB EasyEclipse, IBM's Europa bundles, and
Innoopract's Yoxo On Demand distros -- all of which allow you to download a
prepackaged, customized version of Eclipse Europa, and many of which already contain
the plug-ins and tools you need to start working right away.
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Articles |
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20 May 2008 |
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Understanding Eclipse's new bundle-management mechanism
Learn how to fill the gap between the IBM Rational Functional Tester and the
console of Eclipse-based products by supporting the OSGi commands install, ss, start,
stop, headers, active, update, and uninstall. The solution offers an effective approach
for automation test-case support when the manifest of an Eclipse-AutoStart header has
been upgraded to Eclipse-LazyStart. This article presents test scenarios to verify that
the bundle-management mechanisms work well.
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Articles |
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13 May 2008 |
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Develop Ajax applications like the pros, Part 1: Using the Prototype JavaScript library and script.aculo.us
If you're developing Web applications these days, then you're doing Ajax
development. Ajax is no longer something unusual that you add to your applications
in special cases. It has become an integral part of Web development. To some,
enhancing applications with Ajax used to be a tricky proposition. Cross-browser
limitations to deal with, writing a lot of complicated JavaScript, and learning
about magic numeric codes within that JavaScript were just a few of the challenges facing Ajax developers. Thankfully, several open source JavaScript libraries are available now to make things much easier. In this first article in a three-part series, you will create an Ajax application for managing songs using the Prototype JavaScript library and script.aculo.us.
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Articles |
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13 May 2008 |
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Build Web services with PHP in Eclipse
Learn how to build Web services in PHP using the PHP Development Tools plug-in
in Eclipse Europa. Become familiar with the PDT project, and learn how to create and
deploy useful PHP projects, learn about the philosophy behind contract-first
development, and understand the basic parts that make up a Web Services Description Language (WSDL) file.
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Tutorials |
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13 May 2008 |
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The future of PHP
PHP's next edition, V6, includes new features and syntax improvements that will
make it easier to use from an object-oriented standpoint. Other important features,
such as Unicode support in many of the core functions, mean that PHP
V6 is positioned for better international support and robustness.
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Articles |
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06 May 2008 |
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Automation for the people: Manage dependencies with Ivy
Managing source-code dependencies among projects and tools is often a burden, but it doesn't need to be. In this installment of
Automation for the people,
automation expert Paul Duvall describes how you can use the Apache Ant project's Ivy dependency manager to handle the myriad dependencies that every nontrivial Java project must manage.
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Articles |
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06 May 2008 |
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Integrate external tools and builders in Eclipse
With launch configurations in Eclipse Europa, you can run external programs from
within the development environment and save settings for how you call an external
program. Learn how to build and use these launch configurations, including the types of automatic parameters available.
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Tutorials |
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06 May 2008 |
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Mock Web services with Apache Synapse to develop and test Web services
Apache Synapse is a simple, lightweight, high-performance enterprise service
bus (ESB) released under the Apache License, Version 2.0 from the Apache Software
Foundation. Using Apache Synapse, you can filter, transform, route, manipulate, and
monitor SOAP, binary, XML, and plain text messages that pass through your
large-scale enterprise systems by HTTP, HTTPS, Java Message Service (JMS), Simple
Mail Transfer Protocol (SMTP), Post Office Protocol Version 3 (POP3), FTP, file
systems, and many other transport mediums. But for an individual developer, what's
the use of an ESB product in your day-to-day life? The simplicity of the
configuration, out-of-the-box feature set, extensible architecture, and the minimal
footprint makes it a versatile and powerful tool that you can use for a variety of
tasks. This article examines how you can use Apache Synapse to create mock Web
services.
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Tutorials |
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01 May 2008 |
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Migrating to ext4
Ext4 is the latest
in a long line of Linux file systems, and it's likely to be as important and
popular as its predecessors. As a Linux system administrator, you should be aware of the
advantages, disadvantages,
and basic steps for migrating to ext4. This article explains when to adopt ext4, how to adapt
traditional file
system maintenance tool usage to ext4, and how to get the most out of the
file system.
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Articles |
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30 Apr 2008 |
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Make JUnit testing Java applications easier with Grester
So, you've written a bunch of unit tests. As a developer, you run your tests
multiple times per day, especially in a continuous integration environment. But how
badly would they break if the sources had to change? When Jester and Maven combine to
make Grester, you can quickly find out.
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Articles |
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29 Apr 2008 |
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Introducing the JyDT plug-in for Eclipse
The JyDT plug-in enables Eclipse to work as a Jython/CPython IDE. This tutorial
provides a brief description of the JyDT project and how to configure it. Learn to use
the PyDev perspective and explorer, compile and run code, use the debugger, do unit
testing, refactor, manage Python projects, and use the editor and IDE.
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Tutorials |
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29 Apr 2008 |
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Jenabean: Easily bind JavaBeans to RDF
The Resource Description Framework (RDF) is the World Wide Web
Consortium (W3C) proposed standard for linking and expressing data on the Web.
Java developers who develop applications for the Semantic Web will need to convert RDF properties to or from Java types. Jenabean uses the Jena Semantic Web framework's flexible RDF/OWL API to persist JavaBeans, making the task of writing these applications easier and more familiar to Java developers.
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Articles |
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29 Apr 2008 |
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Migrate .NET applications from Visual Studio to Eclipse
Learn how to develop open source C# applications using the Emonic Eclipse
plug-in and how to use Eclipse on existing Microsoft .NET Framework V2.0 projects.
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Articles |
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22 Apr 2008 |
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10 time-saving techniques in Eclipse Europa
Eclipse Europa offers many convenient features for navigating and editing Java
files. Discover what they are and how to use them, and when you're finished, you may be
saying, "I didn't know that!"
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Tutorials |
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22 Apr 2008 |
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Use the YouTube API with PHP
The YouTube video sharing site allows Web application developers to access public
content through its REST-based developer API. The SimpleXML extension in PHP is ideal for processing the
XML feeds generated by this API and using them to build customized PHP applications. This article introduces
the YouTube Data API, demonstrates how you can use it to browse user-generated video content; access video
metadata, comments and responses; and perform keyword searches.
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Articles |
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18 Apr 2008 |
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| |
Install Apache Geronimo v1.x on Linux
See how easy it is to install Apache Geronimo in a Linux environment. This demo shows how to install Apache Geronimo v1.x, an open source application server available from the Apache Software Foundation, in a Linux x86 environment for use by multiple developers.
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Demos |
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16 Apr 2008 |
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LPI exam 301 prep, Topic 306: Capacity planning
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this last
in a series of six tutorials, Sean walks you through monitoring your system
resources, troubleshooting resource problems, and analyzing system capacity.
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Tutorials |
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15 Apr 2008 |
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| |
Mastering Grails: Many-to-many relationships with a dollop of Ajax
Many-to-many (m:m) relationships can be tricky to deal with in a Web
application. In this installment of Mastering Grails, Scott Davis shows you how to
implement m:m relationships in Grails successfully. See how they're handled by the
Grails Object Relational Mapping (GORM) API and the back-end database. Also find out
how a bit of Ajax (Asynchronous JavaScript + XML) can streamline the user interface.
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Articles |
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15 Apr 2008 |
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| |
Identify speakers with sndpeek
Use sndpeek and custom algorithms to match voices to a pre-recorded library.
Create applications to let you know who is speaking in teleconferences, podcasts, and
live media events. Build basic assistance programs to help the hearing-impaired identify
speakers in a bandwidth-limited context.
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Articles |
|
15 Apr 2008 |
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| |
What's new in Zend Framework V1.5
The popular open source Zend Framework just got some slick enhancements. Learn
what's new in V1.5 and how upgrades, including Zend_Form, Zend_Layout and Zend_View,
enhanced support for GData Web services, and improved Ajax support can help PHP
developers easily roll out cutting-edge Web applications.
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Articles |
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15 Apr 2008 |
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| |
Tapestry and Wicket compared
JSF and Struts are the traditional component frameworks developers turn to for
Web development. You have an alternative, however: Tapestry and
Wicket are component-oriented Web frameworks designed to create Web
applications. A simple example application implementing a to-do list workflow is
developed here, using Tapestry and Wicket technologies.
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Articles |
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08 Apr 2008 |
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| |
Metamodeling with EMF: Generating concrete, reusable Java snippets
Learn how to extend the Eclipse Modeling Framework (EMF) Ecore metamodel by
adding elements and attributes to model reusable Java snippets. Also see, step
by step, how to use dynamic templates with JET to generate the implementation code for
the extended model elements.
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Articles |
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08 Apr 2008 |
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| |
Linux development on the PlayStation 3, Part 3: Slimming down X11 with tiny tools
The Sony PlayStation 3 (PS3) runs Linux, but getting it to run well requires
some tweaking. In the third and final article of this series on PS3 Linux, Peter
Seebach talks about ways to get X11 slimmed down to fit on a smaller memory budget.
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Articles |
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08 Apr 2008 |
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| |
LPI exam 301 prep, Topic 305: Integration and migration
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this fifth
in a series of six tutorials, Sean walks you through integrating LDAP with your
system's logins and applications. He also details the procedure to
integrate your server into a foreign Microsoft Active Directory.
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Tutorials |
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08 Apr 2008 |
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Plug-in development 101, Part 2: Introducing rich-client applications
Plug-in development in Eclipse is somewhat of an art form. If you're new to the
concept of plug-ins, especially in the context of OSGi and Eclipse, it can be a burden
learning the myriad tools Eclipse has to help you write plug-ins. This
article will help you learn some basic plug-in development skills, with some best
practices sprinkled in for good measure.
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Articles |
|
01 Apr 2008 |
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| |
Setting up your own on-demand video site with PHP, Part 1: Groundwork
Setting up your own on-demand video site doesn't have to be complicated. Upload
some videos and put them up for people to watch. Easy enough. But if you're going to be
doing a lot of videos, you'll need a way to keep them organized. This three-part
"Setting up your own on-demand video site with PHP" tutorial series will take you
through what you need to know to create video optimized for the Web, as well as
creating a PHP application that will keep your videos organized and readily accessible.
Part 1 lays the groundwork by assembling and installing the necessary components and
gathering and converting the video.
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|
Tutorials |
|
01 Apr 2008 |
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| |
Linux development on the PlayStation 3, Part 2: Working with memory
The Sony PlayStation 3 (PS3) runs Linux, but getting it to run well requires
some tweaking. In this article, the second in a series, Peter Seebach takes a look
at where all the memory goes and how to reclaim it.
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Articles |
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31 Mar 2008 |
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| |
Five more PHP design patterns
PHP V5's object-oriented features give you the ability to implement design
patterns to improve your code's design. When you improve your code's design in this
way, it becomes more readable, more maintainable, and more robust to absorb changes.
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Articles |
|
25 Mar 2008 |
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| |
LPI exam 301 prep, Topic 304: Usage
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this fourth
in a series of six tutorials, Sean walks you through searching your LDAP tree and
using the command-line tools. You'll also learn how to set up Microsoft Outlook to
query your LDAP tree.
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Tutorials |
|
25 Mar 2008 |
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| |
Develop and execute WS-BPEL V2.0 business processes using the Eclipse BPEL plug-in
BPEL V2.0 is a powerful language intended to help in development of huge, complex
applications consisting of a lot of other components and Web services. BPEL allows
you to describe long-running workflows using graphical editors to present workflows
on human-friendly diagrams. This article describes how to combine the Eclipse BPEL
plug-in for development of processes and Apache ODE for their execution.
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Articles |
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25 Mar 2008 |
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| |
Eclipse at eBay, Part 2: eBay's plug-ins in action
Eclipse has become the premier integrated development environment (IDE) for Java
developers everywhere. Eclipse is definitely not a one-size-fits-all system, though.
Its plug-in architecture allows you to add the features you need. This is even more
important in large organizations like eBay. Such organizations have very specific
needs. Eclipse makes it easy to not only tailor a solution to those needs but also to
scale that solution across a large organization. Here in Part 2 of a two-part "Eclipse
at eBay" series, we will look at some of the organizational needs of eBay and how it has
used Eclipse to fill those needs. We will concentrate on how eBay has used Eclipse, but
the beauty is that you can employ similar tactics for your organization.
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Articles |
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18 Mar 2008 |
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| |
Implement business logic with the Drools rules engine
Using a rules engine can lower an application's maintenance and
extensibility costs by reducing the complexity of components that implement complex
business logic. This updated article shows you how to use the open source Drools
rules engine to make a Java application more adaptive to changes. The Drools project
has introduced a new native rule expression language and an Eclipse plug-in, making
Drools easier to use than ever before.
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Articles |
|
18 Mar 2008 |
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| |
Linux development on the PlayStation 3, Part 1: More than a toy
The Sony PlayStation 3 (PS3) runs Linux, but getting it to run well requires
some tweaking. In this article, first in a series, Peter Seebach introduces the
features and benefits of PS3 Linux, and explains some of the issues that might
benefit from a bit of tweaking.
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Articles |
|
18 Mar 2008 |
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| |
Build a mobile RSS reader
What good is a mobile computing environment if you can't keep track of your favorite news feeds on the go? Sure, you can use Android's browser to read your favorite Web sites, but it's unlikely the sites are optimized for a screen two inches high. And besides, then you'll miss the opportunity to integrate RSS or other XML data with other mobile applications to make your own mash-ups. This tutorial shows you how to use the Android Developer Tools to read, parse, and display XML data.
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Tutorials |
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18 Mar 2008 |
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| |
Identify and verify users based on how they type
Modify the GNOME Display Manager (GDM) to support user verification through
keystroke-dynamics processing. Create and store a one-way encrypted hash of your
keystroke patterns when entering your user name. Add code to GDM to read current
keystroke patterns and permit a user to log in when the characteristics are a match.
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Articles |
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18 Mar 2008 |
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ThinkPad aerobics: Rotate and shake your laptop to control applications
Use synthetic X Window System events and embedded accelerometers to control
applications by the movement of a laptop computer. Translate gestures, such as
shaking, into mode-switching commands with detection algorithms to interact with
applications in new ways. Develop tools to help build the next generation of
interfaces that use accelerometers, such as applications for laptops and iPhones.
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Articles |
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11 Mar 2008 |
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| |
Dynamic programming and sequence alignment
Molecular biology is increasingly dependent on computer science algorithms
as research tools. This article introduces you to bioinformatics -- the use of
computers to solve biological problems. Learn the basics of dynamic programming, an
advanced algorithmic technique you may find useful in many of your programming
projects.
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Articles |
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11 Mar 2008 |
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Mastering Grails: Changing the view with Groovy Server Pages
Groovy Server Pages (GSP) puts the "Web" in the Grails Web
framework. In the third installment of his
Mastering Grails
series, Scott Davis shows you the ins and outs of working with GSP. See how easy it
is to use Grails TagLibs, mix together partial fragments of GSPs, and customize the
default templates for the automatically generated (scaffolded) views.
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Articles |
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11 Mar 2008 |
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Eclipse at eBay, Part 1: Tailoring Eclipse to the eBay architecture
Eclipse's first claim to fame was as an integrated development environment (IDE)
for Java. Eclipse's plug-in architecture is a big reason for its success. There are
many popular plug-ins available, and it is very easy to create your own. These two
traits make Eclipse a perfect fit for systems with specialized architectures, such as
eBay. In this article, the first of a two-part series covering eBay's use of Eclipse,
we look at eBay's architecture and how eBay has tailored Eclipse to suit its
architecture. While the article focuses on eBay, you can use the lessons here to
tailor Eclipse to your system's architecture.
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Articles |
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11 Mar 2008 |
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Scaling PHP applications with Varnish
Stretch the capacity of your Web server farm with PHP and a reverse proxy, such as Varnish.
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Articles |
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04 Mar 2008 |
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LPI exam 301 prep, Topic 303: Configuration
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this third
in a series of six tutorials, Sean walks you through configuring a Lightweight
Directory Access Protocol (LDAP) server, including access control, security, and
performance. By the end of this tutorial, you'll know about LDAP server
configuration.
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Tutorials |
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04 Mar 2008 |
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WSAS and Eclipse simplify creating Web services
We find Web services everywhere today. There's a good chance you will need to
create Web services for whatever new applications or features you are developing. And it
was not too long ago that this could be a painful proposition. WSO2 realized this and
created an Eclipse plug-in to help make working with Web services easier. This article
explores the WSO2 Web Services Application Server (WSAS) Eclipse plug-in and how it can
help you develop Web services.
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Articles |
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04 Mar 2008 |
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Develop Android applications with Eclipse
Android is Google's oft-discussed mobile, wireless, computer, and communications
platform. You can take advantage of the powerful Eclipse environment to build Android
applications using the Android Eclipse plug-in. This tutorial introduces Android
application development with the Eclipse plug-in, otherwise known as Android
Development Tools. The tutorial provides an introduction to Android development with a
quick introduction to the platform, a tour of Android Development Tools, and includes
the construction of two example applications.
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Tutorials |
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26 Feb 2008 |
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Desktop development for the OLPC laptop
The XO laptop (of the One-Laptop-Per-Child initiative) is an inexpensive
laptop project intended to help educate children around the world. The laptop
includes many innovations, such as a novel, inexpensive, and durable hardware design
and the use of GNU/Linux as the underlying operating system. The XO also includes an
application environment written in Python with a human interface called Sugar,
accessible to everyone (including kids). This article is excerpted from the
developerWorks tutorial "Application development for the OLPC laptop," which takes a
look at the Sugar APIs and shows how to develop and debug a graphical activity in
Sugar using Python.
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Articles |
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26 Feb 2008 |
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Create your own information space with Ajax and del.icio.us
del.icio.us is a social bookmarking Web site that allows users to create and
share browser-independent bookmarks, accessible directly over the Internet, in ways
your browser won't allow. The traditional hierarchical organization of browser bookmarks is overhauled, allowing users to instead associate each and every bookmark with any number of descriptive tags. Imagine a single page where you and your friends can surf the Web and have your del.icio.us tags, links, and functions handy, or a single page where you can save the site you're browsing directly into your del.icio.us account, along with comments and chosen tags. This tutorial shows you how to use Ajax to build just such a page using a PHP script as the server-side proxy.
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Tutorials |
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26 Feb 2008 |
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PHP frameworks, Part 5: Integrating external tasks
A short few years ago, a common criticism about PHP was that it
did not support MVC-style architectures. Today, developers can chose from many
PHP frameworks. This "PHP frameworks" series takes a look at three widely used PHP frameworks -- Zend,
symfony, and CakePHP -- examining their similarities and differences while
building and extending a sample application in each of the three. In this article, you will integrate external tasks,
creating a simple task that can be called using the scheduler cron.
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Articles |
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19 Feb 2008 |
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Configuring and adding menu items in Eclipse V3.3
In earlier versions of Eclipse, adding commands to a menu, pop-up menu,or
toolbar was tricky. No more! Eclipse V3.3 introduces a mechanism that's easier than
ever. Find out how to use org.eclipse.ui.menus.
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Articles |
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19 Feb 2008 |
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Automate data entry with Web services and Ajax
Let's cut through the chatter and find out how a Web service and
Asynchronous JavaScript + XML (Ajax) can improve an application, in this case a Ruby
on Rails (RoR) application. This article shows you how to spruce up a common Web activity
-- entering a street address -- with Ajax and a call to a Web service. Learn a few
tricks to combining these fundamental Web 2.0 components.
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Articles |
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14 Feb 2008 |
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PHP frameworks, Part 4: Ajax support
A common criticism of early versions on PHP was that they did not support
Model-View-Controller (MVC)-style architectures. Today, developers can chose from many
PHP frameworks. This "PHP frameworks" series takes a look at three widely used PHP frameworks -- Zend,
symfony, and CakePHP -- examining their similarities and differences while
building and extending a sample application in each of the three frameworks. Part 1
lays out the scope for the series and gets the prerequisites out of the way. In Part
2, you build the sample application in each of the three frameworks. In Part 3,
you extend the application and look at exceptions to the rule. Here,
take a look at how Asynchronous JavaScript + XML (Ajax) is supported in each of the frameworks.
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Articles |
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12 Feb 2008 |
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Mastering Grails: GORM: Funny name, serious technology
Any good Web framework needs a solid persistence strategy. In this second
installment of his Mastering Grails series, Scott Davis introduces the Grails Object
Relational Mapping (GORM) API. See how easy it is to create relationships between
tables, enforce data validation rules, and change relational databases in your
Grails applications.
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Articles |
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12 Feb 2008 |
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Plug-in development 101, Part 1: The fundamentals
Plug-in development in Eclipse is somewhat of an art form. If you're new to the
concept of plug-ins, especially in the context of OSGi and Eclipse, it can be quite
burdensome learning the myriad tools Eclipse has to help you write plug-ins. The
purpose of this article is to help you learn some basic plug-in development skills with
some best practices sprinkled in for good measure.
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Articles |
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12 Feb 2008 |
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Take your ThinkPad out for a walk to create wireless site surveys
Use the accelerometer embedded in a ThinkPad to record your movements while
monitoring your network connectivity. Use custom algorithms to extract footstep
features from the recorded data, then automatically plot signal strengths on a floor-plan
map to determine the best areas of coverage.
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Articles |
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12 Feb 2008 |
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Top 10 Open source tutorials and articles -- October 2009
Check out which Open source tutorials and articles developerWorks readers
found most interesting last month.
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08 Feb 2008 |
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Jump-start your PHP applications with the Eclipse PHP Class Generator plug-in
PHP classes can sometimes still be a black box, a big unknown to many new and
some old-school PHP developers. But it doesn't have to be that way. Classes help
modularize code and remove extraneous copies of code scattered throughout the code base
by placing the code into functions within classes. This helps make maintaining
your code much easier. That's what the PHP Class Generator plug-in for Eclipse helps
PHP developers do: generate PHP classes to help manage database tables, so you don't
have to, which helps speed up the learning curve.
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Articles |
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05 Feb 2008 |
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Receive events from XMLBeans
XMLBeans is a great XML-to-Java data-binding technology, but it lacks the ability to register observers for model changes. However, you can customize generated plain old Java objects (POJOs) to include the necessary interfaces and the notification of changes. Create a Sudoku Rich Client Platform (RCP) game application in Eclipse, and learn how to use eventing to validate the user's input.
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Articles |
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29 Jan 2008 |
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Execute business processes with Eclipse
Everyone -- from consultants and analysts to architects and engineers -- has
ideas. But implementing a new idea can be challenging, requiring knowledge of an
unfamiliar development language or hiring costly developers. What if there was a way to
create an executable business process using a graphical editor that can ultimately be
executed on an appropriate engine? Well, there is. Using the Eclipse STP BPMN Modeler,
you can graphically create a business model represented in XML that can be converted to
an executable using Eclipse ATL that will ultimately deploy on Apache ODE.
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Tutorials |
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29 Jan 2008 |
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Develop iPhone Web applications with Eclipse
Learn to create iPhone Web sites using Eclipse, Aptana's iPhone Development
plug-in, and the iUi framework. See the development of a Javadoc viewer for the iPhone,
uncover tips for user interface design, and hear about the future of iPhone application development.
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Articles |
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29 Jan 2008 |
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Tip: Manipulate del.icio.us bookmarks with PHP
The del.icio.us service lets users collect and share bookmarks online.
Manipulate these bookmarks with PEAR's Services_Delicious package that interfaces
with the REST API of del.icio.us and build customized PHP applications.
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Articles |
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22 Jan 2008 |
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Build a customizable RSS feed aggregator in PHP
RSS (Rich Site Summary, RDF Site Summary, or Really Simple Syndication) has
been around since the mid-1990s. Over the years, several variants of the RSS format
have popped up and several claims have been made about its ownership. Despite these
differences, RSS never ceased to serve its usefulness in distributing Web content
from one Web site to many others. The popularity of RSS gave way to the growth of a
new class of Web software called the feed reader, also known as the feed aggregator.
Although there are several commercially available feed aggregators, it's easy to
develop your own feed aggregator, which you can integrate with your Web
applications. You'll appreciate this article's fully functional PHP code snippets,
demonstrating the use of PHP-based server-side functions to develop a customizable
RSS feed aggregator. In addition, you'll reap instant benefits from using the fully
functional RSS feed aggregator code, which you can download from this article.
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Articles |
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22 Jan 2008 |
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Enterprise search with PHP and Apache Solr
Discover how to combine an enterprise-worthy search engine -- Apache Software
Foundation's Solr -- with your PHP application.
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Articles |
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15 Jan 2008 |
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Explore Ubuntu Mobile and Embedded
Ubuntu is a great server and desktop distribution for the GNU/Linux
operating system, but did you know that it's also ideal for handheld and mobile
embedded devices? Ubuntu's latest release, Gutsy Gibbon, now includes support for
the embedded and mobile spaces with the Ubuntu Mobile and Embedded (UME) project.
Get to know the UME project, and find out how to get started.
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Tutorials |
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15 Jan 2008 |
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Getting started with the Orangevolt Eclipse XSLT plug-in
The Orangevolt XSLT plug-in, a successor of the Swing-based ROXES XmlWrite,
provides Eclipse with an enhanced XSLT editing environment. The plug-in builds on the
existing Eclipse Web Tools Platform (WTP) and introduces new features for XSL and XML.
Learn what XSLT can do for you and how easy it is to employ XSLT with the Orangevolt XSLT plug-in.
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Articles |
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15 Jan 2008 |
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Mastering Grails: Build your first Grails application
Java programmers needn't abandon their favorite language and
existing development infrastructure to adopt a modern Web development framework. In the
first installment of his new monthly series Mastering Grails, Java
expert Scott Davis introduces Grails and demonstrates how to build your first Grails
application.
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Articles |
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15 Jan 2008 |
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Java API reference documentation
This article further
discusses the JavaTOC doclet, how to use it, and how to extend it. The approaches
described are the Javadoc standard solution and the Eclipse Plug-in Help System
generated using the tool. I will run the JavaTOC doclet in Eclipse through
the Custom doclet wizard, and second through Ant build system. The JavaTOC
tool generates the TOC XML navigation for Java API reference documentation.
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Articles |
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15 Jan 2008 |
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Pull parsing XML in PHP
Discover the XMLReader library, which is bundled with PHP 5 and enables PHP pages to process XML documents in an efficient streaming mode.
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Articles |
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11 Jan 2008 |
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Mastering regular expressions in PHP, Part 2: How to process text in PHP
Here in Part 2 of this "Mastering
regular expressions in PHP" series, learn how to solve a variety of difficult text
processing problems with a few advanced regular expression operators.
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Articles |
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08 Jan 2008 |
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Convert Atom documents to JSON
Converting an Atom document to JSON might, at first, appear to be a fairly
straightforward task. Atom is, after all, just a bit of XML and XML-to-JSON
conversion tools are widely available. However, the Atom format is more than just
a set of XML elements and attributes. A number of subtle details can make proper
handling of Atom difficult. This article describes those issues and demonstrates a
mechanism implemented by the Apache Abdera project to convert Atom documents into
JSON and produces a result that is readable, usable, and complete.
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Articles |
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08 Jan 2008 |
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Cell/B.E. container virtualization, Part 2: Implementation issues
This three-part series illustrates a
hardware-resource-focused form of software virtualization known as container
virtualization (or operating system virtualization), demonstrated through the open
source project OpenVZ. The series provides a comprehensive overview of all the
components and techniques needed to virtualize the Cell/B.E. processor with software
methods. This second article of the series details the implementation of
dedicated virtualization and partitioning that was described in Part 1 of the series.
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Articles |
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08 Jan 2008 |
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Tip: Easy command line processing with the DITA Open Toolkit
The DITA Open Toolkit can transform your DITA files into a wide variety of
output types. When you first install it, it's easy to get the impression that you
need to know Ant well to use it, but you can pack most of its available options into
a single Java(TM) command line.
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Articles |
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08 Jan 2008 |
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Building the DB2 Health Monitor Sample Application for PHP, Part 2: DB2 pureXML or DOM? You decide
DB2 9 pureXML technology allows businesses to improve data
integrity and avoid legacy data lock-in. It enables application developers
to utilize the best storage medium for the task and eliminate the middle-tier
application logic previously required to take advantage of Web services. It
enables DBAs to centralize logic at the database server
and to help to optimize performance. More importantly, pureXML technology helps to reduce
the complexity of application development back to what it always has been by utilizing
the database for what it does best: to describe, retrieve, and store data. This
article uses the DB2 Health Monitor Sample Application as an example to show you how this
is possible.
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Articles |
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03 Jan 2008 |
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Mastering regular expressions in PHP, Part 1: Perl may be regex king, but PHP can slice and dice input quickly, too
Pattern matching is such a common chore for software that a special shorthand --
regular expressions -- has evolved to make light work of the task. Learn how to use
this shorthand in your code.
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Articles |
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01 Jan 2008 |
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Java API reference documentation
This article, Part 2 of a series, describes different approaches for generating easy-to-use and searchable Java application programming interfaces (API) reference documentation.
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Articles |
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26 Dec 2007 |
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Build an Ajax-enabled search page using the Rico JavaScript library, ColdFusion
MX 7, and Windows Indexing Service
A Web site or intranet has such a high volume of information available that you need special tools to index the content and provide access to it in a fast and convenient way. Learn how to do just that and provide a state-of-the-art search facility with the help of an Ajax library coupled with mature technologies like ColdFusion and Windows Indexing Service.
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Articles |
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18 Dec 2007 |
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Application development for the OLPC laptop
The XO laptop (of the One-Laptop-Per-Child initiative) is an inexpensive
laptop project intended to help educate children around the world. The XO laptop
includes many innovations, such as a novel, inexpensive, and durable hardware design
and the use of GNU/Linux as the underlying operating system. The XO also includes an
application environment written in Python with a human interface called Sugar,
accessible to everyone (including kids). Explore the Sugar APIs and learn how to
develop and debug a graphical activity in Sugar using Python.
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Tutorials |
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18 Dec 2007 |
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Building JavaScript applications with JSEclipse
Using JSEclipse, JavaScript programmers now have their own Eclipse plug-in
that provides many important features to aid in the development of JavaScript
applications. JSEclipse gives JavaScript developers the same ease of use that
Eclipse has been providing in the Java language and others for years. Learn to use
this tool, while creating a colony of evolving "creatures" on your page.
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Tutorials |
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18 Dec 2007 |
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Web development with Eclipse Europa, Part 3: Ruby Development Toolkit and RadRails
It's a good time to be a Web developer. You've never had more choices in terms
of technologies. There are so many great open source Web servers, databases,
programming languages, and development frameworks. No matter what combination of
technologies you prefer to work with, there is a single integrated development
environment (IDE) that can increase your productivity: Eclipse. In Part 1 of this
three-part series on how to use Eclipse for Web development in Java, PHP, and Ruby, you
saw how the latest release of Eclipse -- Europa -- can be used to rapidly develop Java
Web applications. In Part 2, you saw how easy it is to develop PHP applications using
a different set of Eclipse plug-ins, collectively known as the PHP Development Toolkit
(PDT). Here in Part 3, we introduce the RDT and RadRails Eclipse plug-ins and show you
how to get these plug-ins and start using them. You will learn how to use RadRails to
do many common Ruby on Rails development tasks.
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Tutorials |
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18 Dec 2007 |
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Rich Ajax Platform, Part 2: Developing applications
The Rich Client Platform (RCP) is a powerful platform technology to build
enterprise applications. With the help of Rich Ajax Platform (RAP), it gets more
interesting because you can reuse
your existing code base and development skills for a Web application, as you saw in Part
1 of this "Rich Client Platform" series. Additionally, RAP has some noteworthy features,
making Web development even more attractive. The article goes beyond the Hello World
example, and explains some key concepts and how to use advanced features provided by RAP.
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Articles |
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11 Dec 2007 |
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Web development with Eclipse Europa, Part 2: The Java EE for Eclipse
No matter what combination of technologies you prefer to work with as a Web
developer, Eclipse is a single integrated development environment (IDE) that can
increase your productivity. In Part 1 of this three-part series, you saw how the latest release of Eclipse -- Europa -- can be used to rapidly develop Java Web applications. In this tutorial, Part 2, we'll see how easy it is to develop PHP applications using a different set of Eclipse plug-ins, collectively known as the PHP Development Toolkit (PDT.)
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Tutorials |
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11 Dec 2007 |
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Cell/B.E. container virtualization, Part 1: Concepts, architectures, and tools
This three-part series illustrates a
hardware-resource-focused form of software virtualization known as container
virtualization (or operating system virtualization), demonstrated through the open
source project OpenVZ. The series provides a comprehensive overview of all the
components and techniques needed to virtualize the Cell/B.E. processor with software
methods. This first article of the series discusses the basic concepts
involved, illustrates the salient points of the OpenVZ and Cell/B.E. architectures
and how they work together, and describes some of the OpenVZ tools.
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Articles |
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11 Dec 2007 |
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Tip: Parsing RDDL documents with PHP
The Resource Directory Description Language (RDDL) lets document authors provide more information about resources used within an XHTML document. Parse these RDDL descriptors with an API in the XML_RDDL package from PEAR, and extract resource information for use in any PHP application.
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Articles |
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10 Dec 2007 |
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Futureproofing With SCA
See how SCA can help you build systems that are easy to fit with existing infrastructure and extend in the future.
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Articles |
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06 Dec 2007 |
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Kick-start your Java apps, Part 2
The combination of Eclipse, DB2 Express-C 9.5, and WebSphere Application
Server Community Edition 2.0 -- all free to download, use, and deploy -- is an excellent from-prototype-to-production suite for all of your Java and Java enterprise development needs. What might not be obvious is the relative ease with which you can use these proven tools to create, test, and deploy cutting-edge, lightweight applications as well. This tutorial guides you through the development of a small human-resources application, first using conventional JavaServer Pages (JSP) based technology, and then migrating it to a highly interactive solution using Ajax.
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Tutorials |
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05 Dec 2007 |
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Kick-start your Java apps
To create, test, and deploy a Web-based application or Web service rapidly, you need a proven relational database, a standards-compliant Web application server, and a flexible IDE. Ideally, all these software packages are production-tested, simple to obtain, easy to use, and well integrated with one another. This tutorial shows you how to use IBM-backed open source and free software to kick-start your Java Web-based application development. You'll learn exactly where to download such components, install them, and get them working for you today.
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Tutorials |
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05 Dec 2007 |
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PHP frameworks, Part 3: User authentication
A common criticism of early versions on PHP was that they did not support
Model-View-Controller (MVC)-style architectures. Today, developers can chose from many
PHP frameworks. This "PHP frameworks" series takes a look at three widely used PHP frameworks -- Zend,
symfony, and CakePHP -- examining their similarities and differences while
building and extending a sample application in each of the three frameworks. Part 1
lays out the scope for the series and gets the prerequisites out of the way. In Part
2, you build the sample application in each of the three frameworks. Here in Part 3,
you will extend the application and look at exceptions to the rule.
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Articles |
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04 Dec 2007 |
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LPI exam 301 prep, Topic 302: Installation and development
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this second
in a series of six tutorials, Sean walks you through installing and configuring a
Lightweight Directory Access Protocol (LDAP) server, and writing some Perl scripts
to access the data. By the end of this tutorial, you'll know about LDAP server
installation, configuration, and programming.
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Tutorials |
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04 Dec 2007 |
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Expand your text entry options with keystroke dynamics
Measure the total time of entry and verify the time between keystrokes to help
authenticate a user regardless of the data being entered. Require nonprintable
characters, such as backspace and break, in the password to enable new levels of password
obfuscation. Learn how to apply the open source tools xev and Perl in keystroke
dynamics to measure the more-subtle characteristics of human-computer interaction.
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Articles |
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04 Dec 2007 |
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Display Google Calendar events on your PHP Web site with XPath
Google Calendar and other online calendaring applications provide simple
centralized systems where online communities can maintain event calendars and
community members can get information about upcoming events. But many organizations
prefer to display event calendars on their community portals, forums, or blogs. They
often copy event calendar information from online calendaring applications
onto their Web sites, reducing the effectiveness of centrally managing events
online. Google Calendar provides an integration application program interface (API)
that provides a good solution to this problem. Find out how to use
XPath to extract and display Google Calendar data on your PHP Web site.
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Articles |
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27 Nov 2007 |
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Using the Eclipse SOA Tools Platform plug-in and Apache Tuscany
The Eclipse SOA Tools Platform (STP) plug-in and Apache Tuscany simplifies
services development through the use of the popular Eclipse development
environment. Apache Tuscany has also been integrated with the STP to provide a
Service Component Architecture (SCA) Java run time for the services you create,
allowing you to annotate your service using the SCA standard and Apache Tuscany
annotations. In this tutorial, you will see STP and Apache Tuscany in action, through the
creation of a Remote Method Invocation (RMI) service.
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Tutorials |
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27 Nov 2007 |
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Build metamodels with dynamic EMF
Learn how the Dynamic Eclipse Modeling Framework (EMF) allows you to build
dynamic Ecore-based models on demand without the need to generate Java implementation
classes. This article introduces the APIs, and shows how to serialize and load dynamic
Ecore models and their instances.
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Articles |
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20 Nov 2007 |
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Web development with Eclipse Europa, Part 1: The Java EE for Eclipse
It's a good time to be a Web developer. You've never had more choices in terms
of technologies. There are so many great open source Web servers, databases,
programming languages, and development frameworks. No matter what combination of
technologies you prefer to work with, there is an integrated development
environment (IDE) that can increase your productivity: Eclipse. In this tutorial, Part
1 of a three-part "Web development with Eclipse Europa" series on how to use Eclipse
for Web development with Java technology, PHP, and
Ruby, we'll see how the latest release of Eclipse -- Europa -- can be used to rapidly
develop Java Web applications. We'll use Java Platform, Enterprise Edition 5 (Java
EE) for Eclipse to build a Web application for tracking and calculating baseball statistics.
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Tutorials |
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20 Nov 2007 |
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Anatomy of the Linux SCSI subsystem
The Small Computer Systems Interface (SCSI) is a collection of standards
that define the interface and protocols for communicating with a large number of
devices (predominantly storage related). Linux provides a SCSI subsystem to permit
communication with these devices. Linux is a great example of a layered architecture
that joins high-level drivers, such as disk or CD-ROM drivers, to a physical
interface such as Fibre Channel or Serial Attached SCSI (SAS). This article
introduces you to the Linux SCSI subsystem and discusses where this subsystem is
going in the future.
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Articles |
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14 Nov 2007 |
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Squash bugs in PHP applications with Zend Debugger
A special application called a debugger probes running code, allowing you to
suspend execution arbitrarily, examine objects, explore the call stack, and even change
the value of a variable on the fly. Learn how to use a debugger to squash bugs in your PHP code.
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Articles |
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13 Nov 2007 |
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Software development for the OpenMoko Linux phone
The OpenMoko environment provides a completely free development environment
for running application and system code on supported phone hardware, eliminating all
dependency on proprietary code. This tutorial introduces the OpenEmbedded build
environment used to create filesystem images for OpenMoko phones, such as the Neo
1973.
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Tutorials |
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13 Nov 2007 |
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Emacs editing environment, Part 7: Let Emacs help you out
Part 7 of this series shows you why Emacs is the self-documenting
editor, and the many ways in which you can take advantage of the help and assistance
offered in this editor. In this tutorial, learn about describing keystrokes,
commands, and functions. You'll also read, browse, and search through a complete
Emacs reference manual.
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Tutorials |
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13 Nov 2007 |
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Cell/B.E. SDK 3.0, Part 6: Use simulator consoles, use the ALF wizard, and set IDE preferences
This introductory tutorial, designed for the IBM SDK for Multicore
Acceleration, Version 3.0 (otherwise known as the Cell Broadband Engine SDK),
explores the Cell/B.E. processor IDE and gives developers a click-for-click
walk-through of building a simple project in this environment. This tutorial is broken into six quick-perform parts dealing with creating an SPU
project, creating a PPU project, creating the Cell/B.E. simulator, configuring the application
launcher, debugging and doing performance analysis, using simulator consoles,
using the ALF wizard, and setting IDE preferences.
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Tutorials |
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13 Nov 2007 |
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Cell/B.E. SDK 3.0, Part 5: Debug and complete dynamic or static performance
This introductory tutorial, designed for the IBM SDK for Multicore
Acceleration, Version 3.0 (otherwise known as the Cell Broadband Engine SDK),
explores the Cell/B.E. processor IDE and gives developers a click-for-click
walk-through of building a simple project in this environment. This tutorial is broken into six quick-perform parts dealing with creating an SPU
project, creating a PPU project, creating the Cell/B.E. simulator, configuring the application
launcher, debugging and doing performance analysis, using simulator consoles,
using the ALF wizard, and setting IDE preferences.
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Tutorials |
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13 Nov 2007 |
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Cell/B.E. SDK 3.0, Part 4: Configure the application launcher
This introductory tutorial, designed for the IBM SDK for Multicore
Acceleration, Version 3.0 (otherwise known as the Cell Broadband Engine SDK),
explores the Cell/B.E. processor IDE and gives developers a click-for-click
walk-through of building a simple project in this environment. This tutorial is broken into six quick-perform parts dealing with creating an SPU
project, creating a PPU project, creating the Cell/B.E. simulator, configuring the application
launcher, debugging and doing performance analysis, using simulator consoles,
using the ALF wizard, and setting IDE preferences.
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Tutorials |
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13 Nov 2007 |
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| |
Cell/B.E. SDK 3.0, Part 3: Create the Cell/B.E. simulator environment
This introductory tutorial, designed for the IBM SDK for Multicore
Acceleration, Version 3.0 (otherwise known as the Cell Broadband Engine SDK),
explores the Cell/B.E. processor IDE and gives developers a click-for-click
walk-through of building a simple project in this environment. This tutorial is broken into six quick-perform parts dealing with creating an SPU
project, creating a PPU project, creating the Cell/B.E. simulator, configuring the application
launcher, debugging and doing performance analysis, using simulator consoles,
using the ALF wizard, and setting IDE preferences.
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Tutorials |
|
13 Nov 2007 |
|
| |
Cell/B.E. SDK 3.0, Part 2: Create a PPU project
This introductory tutorial, designed for the IBM SDK for Multicore
Acceleration, Version 3.0 (otherwise known as the Cell Broadband Engine SDK),
explores the Cell/B.E. processor IDE and gives developers a click-for-click
walk-through of building a simple project in this environment. This tutorial is broken into six quick-perform parts dealing with creating an SPU
project, creating a PPU project, creating the Cell/B.E. simulator, configuring the application
launcher, debugging and doing performance analysis, using simulator consoles,
using the ALF wizard, and setting IDE preferences.
|
|
Tutorials |
|
13 Nov 2007 |
|
| |
Cell/B.E. SDK 3.0, Part 1: Create an SPU project
This introductory tutorial, designed for the IBM SDK for Multicore
Acceleration, Version 3.0 (otherwise known as the Cell Broadband Engine SDK),
explores the Cell/B.E. processor IDE and gives developers a click-for-click
walk-through of building a simple project in this environment. This tutorial is broken into six quick-perform parts dealing with creating an SPU
project, creating a PPU project, creating the Cell/B.E. simulator, configuring the application
launcher, debugging and doing performance analysis, using simulator consoles,
using the ALF wizard, and setting IDE preferences.
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Tutorials |
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13 Nov 2007 |
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Create automated verbal conversation annotations for phone numbers, acronyms, and other spoken words
Use the open source Sphinx-4 speech-recognition package to capture letters and
numbers from spoken conversations in near real time to create notes. Employ a custom
Sphinx-4 dictionary file to extract likely matches to spoken letters and numbers.
Process the text for higher order values, such as phone numbers and acronyms, and create
a meeting annotator through search-engine lookups and local databases.
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Articles |
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13 Nov 2007 |
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Process XML configuration files with PHP
XML provides a convenient, easy-to-use expression language for an
application's configuration files. To extract this information into a PHP script can
sometimes pose a challenge. That's where the XJConf for PHP package comes in: It provides an API to read XML-encoded information and directly use it to configure PHP data structures like scalars, arrays and PHP objects. This article introduces the package and demonstrates some useful real-world applications of its usage, including configuring complex class trees and building a Web-based configuration interface.
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Articles |
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06 Nov 2007 |
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Code ColdFusion applications fast with the Eclipse CFEclipse plug-in
ColdFusion, like other Web development languages, enjoys an enthusiastic
following. Since Eclipse is a popular open source development framework, it was only a
matter of time before a ColdFusion plug-in would emerge. Find out how to install and
use the plug-in to develop, test, and deploy a sample ColdFusion application.
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Articles |
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06 Nov 2007 |
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Building a Rich Client Platform application with Eclipse
Learn how to build a Rich Client Platform (RCP)
application using Eclipse. This demo shows you how to use pre-built RCP application templates to
easily build the framework for your applications. Then, it shows you how to turn these
pre-built templates into an excited and unique application using the RCP application editor.
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Demos |
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05 Nov 2007 |
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Automated GUI testing with Eclipse
If you are interested in automated graphical user interface (GUI) testing,
this demo is for you. This demonstration covers automated graphical user interface testing with a technology preview plugin
provided by the Eclipse TPTP. It shows you how to create a test project, create
three test cases, create a test suite, and analyze the test suite.
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Demos |
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05 Nov 2007 |
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Sign and verify XML documents using Apache WSS4J and WebSphere DataPower SOA
Appliances
With the increasing adoption of Web services and Service-Oriented
Architectures (SOAs), ensuring the authenticity, integrity, and nonrepudiability of
XML messages has become an essential component of secure and robust messaging
infrastructures. Using a sample scenario, this article walks you through how to use
Apache WSS4J and IBM WebSphere DataPower SOA Appliances together to enable the
signing and verification of XML documents.
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Articles |
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01 Nov 2007 |
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Apache Lucene quick-start guide
Apache Lucene is a robust open source search solution for myriad
applications, including your own favorite Web sites or your company's intranet.
Apache Lucene will go out and grab and index pages you specify, allowing you to
search them at will. It also comprises several add-on applications, or subprojects,
including the Apache Solr Enterprise search server. In this tutorial, you'll learn
how to use Apache Solr and integrate it with a Web application.
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Tutorials |
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30 Oct 2007 |
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LPI exam 301 prep, Topic 301: Concepts, architecture, and design
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this
first in a series of six tutorials, Sean introduces you to Lightweight
Directory Access Protocol (LDAP) concepts, architecture, and design. By the
end of this tutorial, you will know about LDAP concepts and architecture,
directory design, and schemas.
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Tutorial |
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23 Oct 2007 |
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| |
LPI exam 301 prep, Topic 301: Concepts, architecture, and design
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam 301. In this first
in a series of six tutorials, Sean introduces you to Lightweight Directory Access
Protocol (LDAP) concepts, architecture, and design. By the end of this tutorial, you
will know about LDAP concepts and architecture, directory design, and schemas.
|
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Tutorials |
|
23 Oct 2007 |
|
| |
LPI exam 301 prep, Topic 301: Concepts, architecture, and design
In this tutorial, Sean Walberg helps you prepare to take the Linux
Professional Institute Senior Level Linux Professional (LPIC-3) exam 301. In this first
in a series of six tutorials, Sean introduces you to Lightweight Directory Access
Protocol (LDAP) concepts, architecture, and design. By the end of this tutorial, you
will know about LDAP concepts and architecture, directory design, and schemas.
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Tutorials |
|
23 Oct 2007 |
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| |
Make Ajax development easier with AjaxTags
Developers and users have much higher expectations for the usability and
responsiveness of Web-based applications in the Web 2.0 era. Unless you've been
living under a rock for the past two years, you've likely heard of Asynchronous
JavaScript + XML (the Ajax technique). Ajax allows you to build slick, responsive,
and highly dynamic browser-based user interfaces without requiring browser page
reloads. This article takes a look at AjaxTags, a Java/JavaScript Library that lets you easily integrate Ajax functionality into your JSP pages.
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Articles |
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23 Oct 2007 |
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Rich Ajax Platform, Part 1: An introduction
Asynchronous JavaScript + XML (Ajax) and the concept of Web 2.0 has spread through the development community
as a way add liveliness to Web-based applications. The Rich Ajax Platform (RAP) is
a way to build Ajax-enabled Web applications by using the Eclipse development model.
This article introduces RAP, tells you how to set up a RAP development environment,
shows off some demos, and concludes with some simple-to-understand examples.
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Articles |
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23 Oct 2007 |
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Ajax and XML: Ajax for media
With the advent of widely available broadband, media, movies, images, and sound
drive the Web 2.0 revolution. Learn to combine media with technologies
such as PHP and Asynchronous JavaScript + XML (Ajax) to create a compelling experience
for your customers.
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Articles |
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23 Oct 2007 |
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Linux assemblers: A comparison of GAS and NASM
This article explains some of the more important syntactic and semantic
differences between two of the most popular assemblers for Linux, GNU Assembler
(GAS) and Netwide Assembler (NASM), including differences in basic syntax, variables
and memory access, macro handling, functions and external routines, stack handling,
and techniques for easily repeating blocks of code.
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Articles |
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17 Oct 2007 |
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Refine and debug PHP applications with syslog
An old technique for exploring a running program is to place code that
"displays" the current value of variables at strategic points. But how is this done
without interfering with the standard output of the program? With PHP's syslog()
facility, examining these values is easy.
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Articles |
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16 Oct 2007 |
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PHP frameworks, Part 2: Building the sample application
This PHP frameworks series takes a look at three widely used PHP frameworks -- Zend,
symfony, and CakePHP -- examining their similarities and differences while
building and extending a sample application in each of the three frameworks. Part 1
lays out the scope for the series and gets the prerequisites out of the way. Here in
Part 2, you will build the sample application in each of the three frameworks.
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Articles |
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16 Oct 2007 |
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Develop asynchronous Web services with Axis2
The implementation and invocation of asynchronous Web services is important
to application development. UIs, which expose functionalities of Web services, have
become increasingly interactive. As a result, asynchronous invocations and
implementations have become more useful and effective, ultimately helping provide a
better overall user experience. This article gives you an overview of different
patterns for asynchronous scenarios in Web services and provides insight into how to implement them with Apache Axis2.
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Articles |
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11 Oct 2007 |
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Develop Lisp applications using the Cusp Eclipse plug-in
Lisp is an excellent programming language that allows you to expand your
knowledge of programming languages due to its largely typeless nature. It can also help
those seasoned in the Java programming language, PHP, or C/C++ think in
new ways when developing applications. In addition, you can do some pretty cool things with Lisp. Find
out how to develop Lisp applications using the Cusp Eclipse plug-in.
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Articles |
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09 Oct 2007 |
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PHP frameworks, Part 1: Getting started with three popular frameworks
A few short years ago, one of the more common criticisms about PHP was that it
did not support MVC-style architectures. Times change. And these days, there are a
number of choices available in the world of PHP frameworks. This series takes a look
at three widely used PHP frameworks -- Zend, symfony, and CakePHP -- examining their
similarities and differences while building and extending a sample application in each
of the three frameworks.
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Articles |
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09 Oct 2007 |
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Emacs editing environment, Part 6: Customize your Emacs world
This tutorial, the sixth in a series, walks you
through some of the useful ways you can customize and configure the Emacs
environment. Learn how to change everything about the Emacs environment to your
liking, from the behavior of minor modes to the default key bindings. Along the way,
figure out how to set variables, make all your customizations automatic with a startup file,
save and recall any window and frame customizations that you make, and use the easy
customizer that comes built into Emacs.
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Tutorials |
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02 Oct 2007 |
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Tie IBM OmniFind Yahoo! Edition into Web applications
IBM OmniFind Yahoo! Edition is an entry-level enterprise search software
solution that is ready for primetime on your company's intranet. Using OmniFind, you
can index your intranet, offering employees a robust and easy search solution so they
can find what they're looking for promptly. Learn how to use the OmniFind features, take
advantage of its APIs, and integrate them into your own Web applications.
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Tutorials |
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02 Oct 2007 |
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Use the Business Intelligence Reporting Tool with DB2 Data Warehouse
Edition, Part 3: Create complex reports with BIRT
The Business Intelligence Reporting Tool (BIRT), an open source tool for
report generation, is very useful to DB2 Data Warehouse Edition users because of its
ability to generate reports based on relational data and provide interactivity between them. This series of tutorials demonstrates the best practices for installing BIRT, using it to create reports on relational data, and then deploying those reports in a Web server to view them. During the course of this tutorial, you will learn the best practices of using BIRT in Design Studio.
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Tutorials |
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27 Sep 2007 |
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Unicode for the working PHP programmer
Hello World and nearly all the other examples found in popular PHP tutorials and
references assume a restricted form of English for their "natural language"
communications. But PHP is capable of more. With the right techniques, PHP
effectively handles not just the occasional accented character found in English names
and loanwords but the characters of the world's most common languages: German,
Russian, Chinese, Japanese, and many more.
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Articles |
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25 Sep 2007 |
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Metaclass programming in Python, Part 3
Too much cleverness in programming makes designs more complicated, code more
fragile, learning curves steeper, and worst of all, it makes debugging harder.
Michele and David feel, in part, responsible for some excesses of cleverness that
followed the enthusiastic reception of their earlier articles on Python metaclasses.
In this article, they attempt to make amends, by helping programmers eschew
cleverness.
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Articles |
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25 Sep 2007 |
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System emulation with QEMU
QEMU is an open source emulator for complete PC systems. In addition to
emulating a processor, QEMU permits emulation of all necessary subsystems, such as
networking and video hardware. It also permits emulation of advanced concepts, such
as symmetric multiprocessing systems (up to 255 CPUs) and other processor
architectures, such as ARM or PowerPC. This article explores QEMU and its
architecture and shows how to emulate a guest operating system on a Linux host.
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Articles |
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25 Sep 2007 |
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Revitalize your applications with Eclipse Forms
Eclipse Forms offers a way to enhance the user experience of your Eclipse
applications. It offers a "Web-like" look for your applications without using the
embedded browser. The goal of this article is to give a brief introduction to Eclipse
Forms as a user interface (UI) toolkit and to provide an easy-to-follow example to get you started.
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Articles |
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25 Sep 2007 |
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Explore model-driven development (MDD) and related approaches: Applying domain-specific modeling to Model-Driven Architecture
In this article, use the Eclipse Modeling Framework (EMF) and Graphical
Modeling Framework (GMF) technologies to produce domain-specific modeling tooling aids for domain-specific languages. Learn the value of defining a domain-specific language, basic concepts, tips on creating a good metamodel, and different approaches to modeling.
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Articles |
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18 Sep 2007 |
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Search structured LDAP data with a vector-space engine
Use Perl and a vector-space search engine to search and display records from
your Lightweight Directory Access Protocol (LDAP) database. Use inflected letters and
numbers to create a useful vector space from structured LDAP data. And compensate for
typographical and spelling errors automatically while showing the most appropriate
match for any query entered.
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Articles |
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18 Sep 2007 |
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Developing embedded applications with eJFace
It is safe to assume the demand for applications on mobile devices will increase
in coming years. Now is a good time to learn eJFace -- the open-standards, embedded JFace
library -- a new technology to build embedded applications. Embedded JFace (eJFace) is a component of
the embedded Rich Client Platform (eRCP), which provides an embedded environment for
developers to compose user interfaces (UIs) for embedded applications. Here, we compare
eJFace to JFace and show how to develop applications with eJFace.
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Articles |
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11 Sep 2007 |
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Python for system administrators
Adopt Python to manage UNIX(R) systems while incorporating concepts of good program
design. Python is an easy-to-learn, open source scripting language that lets system
administrators do their job more quickly. It can also make tasks more fun.
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Articles |
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07 Sep 2007 |
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Build an Eclipse plug-in to navigate content in an EMF model
Learn how to use EMF.Edit and Common Navigator Framework (CNF) to create a model
navigation plug-in based on a tree viewer. Build an
Eclipse plug-in that allows users to manipulate and navigate the content of an
Eclipse Modeling Framework (EMF)-based model. This will involve step-by-step guidance of developing the plug-in,
implementing the proper structures to extract the model content through the EMF edit
framework, and displaying the content in a CNF-based view part.
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Articles |
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04 Sep 2007 |
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Apache Geronimo project resources
Find complete listings of the articles, tutorials, project info, and
news you need to stay up-to-date on developing with Apache Geronimo
projects.
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30 Aug 2007 |
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Charming Python: Python elegance and warts, Part 2
In this series of two articles, David discusses the non-obvious features and
misfeatures that have been added to the last several Python versions, with the goal
of helping part-time Python programmers uncover the gems while avoiding the
pitfalls. This installment adds attributes and methods, descriptors, and properties
to the discussion.
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Articles |
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29 Aug 2007 |
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Make your 404 pages smarter with metaphone matching
Create your own 404 error-message handler to provide useful links and redirects
for the contents of your site. Use metaphone matching and a simple weighted score file
to make typographical, spelling, and bad-link redirect suggestions. Customize the
suggestions based solely on your Web site's content and preferred redirection
locations. Catch multiple errors in incoming URL requests and process them for
corrections in directory, script, and HTML page names.
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Articles |
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28 Aug 2007 |
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Speed up your Ajax applications while dodging Web services vulnerabilities
Deploying bandwidth-efficient Ajax applications does not guarantee that the
service levels in a Service Level Agreement will stay high. No matter how well you
change code in the Ajax format to make it more bandwidth efficient, there will be always
risks and vulnerabilities you'll need to watch out for and mitigate. Regular
developerWorks author Judith Myerson gives a brief Ajax recap, shows what Web services
vulnerabilities are and why Service Level Agreements (SLA) are important, and suggests some solutions for speeding up Ajax applications.
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Articles |
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28 Aug 2007 |
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Tip: Read News Industry Text Format (NITF) files with PHP
The News Industry Text Format is an XML-based format used by the news industry to encode and share the content of news articles. PEAR's XML_NITF package provides an extensible API to read and parse NITF-formatted files, making it easy to extract bibliographical information and article content for use in any PHP application.
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Articles |
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28 Aug 2007 |
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Set up a Web server cluster in 5 easy steps
Construct a highly available Apache Web server cluster that spans multiple
physical or virtual Linux servers in 5 easy steps with Linux Virtual Server and
Heartbeat v2.
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Articles |
|
22 Aug 2007 |
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New to Open source
This guide places all the basics of open source in context to help you get started in the most wide-ranging, growing, and dynamic field of software development today. The open source zone is your source for how-to information, tools, and project updates to help you develop with open source technologies and use them with IBM's products. Topic areas include Eclipse, Apache, Derby/Cloudscape, Linux, scripting languages such as PHP, Perl, and Python, as well as broader discussions on licensing and open source development.
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22 Aug 2007 |
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An introduction to Eclipse for Visual Studio users
Eclipse is a new world for Microsoft Visual Studio developers, and getting
started with Eclipse can be confusing. New concepts, such as plug-in architecture,
workspace-centric project structure, and automatic build can seem counterintuitive at
first. Learn about these and other differences between the two environments, so that
you can begin to feel at home with Eclipse.
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Articles |
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21 Aug 2007 |
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Manage ODF and Microsoft Office 2007 documents with DB2 9 pureXML
Integrate your ODF and Microsoft Office 2007 documents into your enterprise and Internet applications more easily than ever before with DB2 9. Review older methods of data interchange with MS Office documents, and learn how MS Office 2007 offers better data interchange. This article discusses interchange with DB2 9 XQuery, Zend Core for IBM, PHP, and PDO technologies.
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Articles |
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16 Aug 2007 |
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iPhone development with PHP and XML
The Apple iPhone is the hottest new device on the market. Discover how
you can develop an application for it using your existing Web tools.
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Articles |
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14 Aug 2007 |
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Mylyn 2.0, Part 2: Automated context management
Now in release 2.0, Mylyn (formerly called Mylar) enhances productivity by seamlessly integrating tasks into Eclipse and automatically managing the context of those tasks as you work. Mylyn Project Lead Mik Kersten has updated his two-part guide to using Mylyn. Part 1 introduces Mylyn's task management facilities and integration with repositories such as Bugzilla. This second half explains how Mylyn's context management facilities make multitasking easy and reduce information overload when you're working on large applications in Eclipse.
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Articles |
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14 Aug 2007 |
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Mylyn 2.0, Part 1: Integrated task management
Now in release 2.0, Mylyn (formerly called Mylar) enhances productivity by seamlessly integrating tasks into Eclipse and automatically managing the context of those tasks as you work. Mylyn Project Lead Mik Kersten has updated his two-part guide to using Mylyn to cover the improvements driven by the massive amounts of user feedback since Mylyn 1.0. Part 1 introduces Mylyn's task management facilities and integration with repositories such as Bugzilla, Trac, and JIRA. You'll learn how context management eases multitasking and reduces information overload in Part 2.
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Articles |
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14 Aug 2007 |
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Publish critical public warnings on the Web
The recently completed Atom Publishing Protocol provides a simple, HTTP-based mechanism for publishing and managing content on the Web. When used with the Common Alerting Protocol standard, Atom publishing can provide a powerful and flexible way to distribute critical, life-saving information. Learn how to create, publish, and consume hazard alerts using Atom.
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Articles |
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14 Aug 2007 |
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Map places, people, and relationships inside a building with open source software
Google and MapQuest do a great job of creating maps of the outside world on the
fly. But what about our workspaces? This article shows how to define and map places and
people inside a building. Search, track, and plot individual cubicles, rooms,
employees, or assets. Graph the location of individuals or groups of employees based on
job function, or track unused office space visually.
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Articles |
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14 Aug 2007 |
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Download Eclipse
Are you a Java EE developer? Download Eclipse open source software bundles
for free from developerWorks, including Callisto and Europa simultaneous release
projects, and get started developing with Eclipse frameworks today.
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07 Aug 2007 |
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Download Eclipse Europa
Are you a Java EE developer? Download Eclipse open source software bundles for
free from developerWorks, including Callisto and Europa simultaneous release projects,
and get started developing with Eclipse frameworks today.
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07 Aug 2007 |
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Emacs editing environment, Part 5: Shape your Emacs view
This tutorial, the fifth in a series,
shows you how to manage and manipulate the shape your Emacs session -- examine how to
partition the Emacs screen, create multiple X client windows for a single Emacs
session, and display multiple buffers in each window, dividing the screen with
horizontal and vertical divisions. You also learn about mouse window control and
characteristics so that by the time you're through, you can make your
Emacs session look and work the way you want it to.
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Tutorials |
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07 Aug 2007 |
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Rich-client application performance, Part 2: Plugging memory leaks
Part 1 of this two-part article on Eclipse rich-client performance covers the basics of measuring an application's performance, applying instrumentation techniques, keeping the UI responsive, and using Jobs to avoid threading mistakes. This second part takes a look at memory usage and how to chase down memory leaks.
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Articles |
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07 Aug 2007 |
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Tip: Create portable database representations with PEAR MDB2_Schema
To change an application's database back-end is a complex task, that often
requires the developer to manually re-create database tables and records using data
types and SQL functions compatible with the new RDBMS. The PEAR MDB2_Schema package can make this task easier, by generating a vendor-neutral representation of a database using XML and providing tools to import this representation into any supported RDBMS.
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Articles |
|
07 Aug 2007 |
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Squash bugs in PHP applications with Xdebug
The Xdebug extension for PHP helps you autopsy your application when an error or
crash occurs. Learn how to use Xdebug to trace the call stack, analyze memory usage,
and comb through the contents of arguments and variables.
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Articles |
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07 Aug 2007 |
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Develop multitasking applications with PHP V5
Many PHP developers believe that because standard PHP lacks threading capabilities,
it's impossible for a practical PHP application to multitask. For example, if an
application needs information from a different Web site, it has to stall until that
remote retrieval is done. Not true! Find out about in-process PHP multitasking
using stream_select and stream_socket_client.
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Articles |
|
07 Aug 2007 |
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| |
Build a custom search engine with PHP
While Google and its ilk are virtually omniscient, the Web's mighty search
engines aren't well suited to every site. If your site content is highly specialized or
distinctly categorized, use Sphinx and PHP to create a finely tuned local search system.
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Articles |
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31 Jul 2007 |
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Rich-client application performance, Part 1: Tools, techniques, and tips for analyzing performance
Significant performance issues are likely to arise even in well-planned
applications. In this two-part article, Chris Grindstaff offers techniques for analyzing
and addressing performance problems. In this first installment, you'll learn how to
measure the performance of Eclipse-based Rich Client Platform (RCP) applications,
determine if slowdowns are caused by CPU or I/O bottlenecks, and keep the UI thread idle
to maintain responsiveness. Part 2 addresses memory problems.
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Articles |
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31 Jul 2007 |
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Java Web Services: Axis2 Data Binding
The Apache Axis2 Web services framework was designed from the start to
support multiple XML data-binding approaches. The current release provides full
support for XMLBeans and JiBX data binding, as well as the custom Axis Data Binding
(ADB) approach developed specifically for Axis2. This article shows you how to use
these different data bindings with Axis2 and explains why you might prefer one over
the others for your application.
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Articles |
|
26 Jul 2007 |
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| |
Java Web Services: Axis2 Data Binding
The Apache Axis2 Web services framework was designed from the start to
support multiple XML data-binding approaches. The current release provides full
support for XMLBeans and JiBX data binding, as well as the custom Axis Data Binding
(ADB) approach developed specifically for Axis2. This article shows you how to use
these different data bindings with Axis2 and explains why you might prefer one over
the others for your application.
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Articles |
|
26 Jul 2007 |
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| |
Maximize your Mac OS X Java development experience using Eclipse
Mac OS X is a powerful platform for Java development. While the Java development
environment is fully integrated into Mac OS X, the Eclipse integrated development
environment (IDE) brings a fully
integrated Java development environment to Mac OS X that provides a consistent
cross-platform experience. Discover how to use this environment to import existing
Xcode projects into Eclipse, tweak key bindings, and integrate Eclipse with the
Mac OS X-bundled Concurrent Versions System (CVS).
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Articles |
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24 Jul 2007 |
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Ajax and XML: Ajax for ratings and comments
In the age of the people-powered Web, allowing your readers to rate and
review content on your site is critical. Discover just how easy it is to add rating
and commenting features to a site with Ajax.
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Articles |
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24 Jul 2007 |
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End-to-end Ajax application development, Part 3: Integrate, test, and debug the application
Ajax (Asynchronous
JavaScript + XML) is quickly emerging as a modern way of bringing desktop quality
software features to Web applications running on browser platforms. This article is
the last of a three-part series where you can complete the development of an
end-to-end Ajax application using technologies available from the open source
community.
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Articles |
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19 Jul 2007 |
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Get started with the Eclipse Platform
Find out about the Eclipse Platform, including its origin and
architecture. Starting with a brief discussion about the open source nature of Eclipse
and its support for multiple programming languages, we demonstrate the Java development
environment with a simple programming example. We also survey some of the software development tools available as plug-in extensions.
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Articles |
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17 Jul 2007 |
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Separate form and function in PHP applications with Smarty
The ease of mixing PHP and other Web-page markup leads to a morass of program logic, HTML, Cascading Style Sheets (CSS), and JavaScript, making maintenance a hair-pulling task. The Smarty template engine separates form from function.
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Articles |
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17 Jul 2007 |
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PHP project resources
Project information for PHP developers, including latest articles and tutorials published, as well as other valuable PHP resources.
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16 Jul 2007 |
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IBM Build to Manage Toolkits
Simplify life for developers and operations managers. The open source Build to Manage Toolkits make it easy for developers to add manageability to distributed Java applications.
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10 Jul 2007 |
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Developing applications using the Eclipse C/C++ Development Toolkit
When most people think "Eclipse," they think "Java IDE." Eclipse is much more. With the proper plug-ins, one can use Eclipse to work
with PHP, Ruby, and Groovy, C, and C++. In this article, you get started with the the Eclipse C/C++ Development Toolkit (CDT). We build a simple
application in C++ using the CDT and the C++ Standard Template Library (STL) to streamline the process and take advantage of some of the
powerful features of C++.
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Articles |
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10 Jul 2007 |
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Lightweight Web servers
Recent years have enjoyed a florescence of interesting implementations of
Web servers, including lighttpd, litespeed, and mongrel, among others. These Web
servers boast different combinations of performance, ease of administration,
portability, security, and related values. The following engineering study surveys the field of lightweight Web servers to help you find one likely to meet the technical requirements of your next project.
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Articles |
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10 Jul 2007 |
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LPI exam 102 prep, Topic 111: Administrative tasks
In this tutorial, Ian Shields continues preparing you to take the Linux
Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this sixth
in a series of nine tutorials, Ian introduces you to administrative tasks. By the
end of this tutorial, you will know how to manage users and groups, set user
profiles and environments, use log files, schedule jobs, back up your data, and
maintain the system time.
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Tutorials |
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10 Jul 2007 |
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Ajax -- A guide for the perplexed, Part 1: Survey of Ajax tools and techniques
Ajax (Asynchronous JavaScript + XML) programming techniques are increasingly dominating the world of Web application development. New developers are stepping into the world of Ajax development every day, and they come from disparate development backgrounds. Part 1 of this multipart series gives you a cheat sheet of Ajax development resources from an expert team of Ajax developers at IBM. The authors draw from their own ramp-up experiences to help you with practical information that will put you on a fast track to effective Ajax development.
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Articles |
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10 Jul 2007 |
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Developing applications using the Eclipse C/C++ Development Toolkit
When most people think "Eclipse," they think "Java IDE." Eclipse is much more. With the proper plug-ins, one can use Eclipse to work
with PHP, Ruby, and Groovy, C, and C++. In this article, you get started with the Eclipse C/C++ Development Toolkit (CDT). We build a simple
application in C++ using the CDT and the C++ Standard Template Library (STL) to streamline the process and take advantage of some of the
powerful features of C++.
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Articles |
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10 Jul 2007 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 13: PHP development within Eclipse
Follow along in this series of articles as the IBM Internet Technology Group designs, develops, and deploys an extranet Web site for a fictitious company, International Business Council (IBC), using a suite of freely available software. In this article, explore how to use the Eclipse integrated development environment to create your Web site, with a focus on Eclipse's support for PHP and using Concurrent Versions System (CVS) for version control.
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Articles |
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03 Jul 2007 |
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Keep your code clean with Eclipse V3.3
Clean, easy-to-read code allows developers who are unfamiliar with a program to understand it quickly and completely, which makes
software maintenance more efficient than the alternative. Get an introduction to the new cleanup capabilities in Eclipse V3.3 that allow
developers more options for cleanup than earlier versions.
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Articles |
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03 Jul 2007 |
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A whirlwind tour of Eclipse Europa
With the simultaneous release of 21 projects this year, the Eclipse Europa release marks a significant improvement over last year's release train of 10 projects. Get a brief overview of each of the projects associated with the Europa release.
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Articles |
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29 Jun 2007 |
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Build extensions for Eclipse one snippet at a time
Find out how to build a plug-in for Eclipse and Rational Application Developer V7. You can use this plug-in to define snippets that let you add
code that follows enterprise standards. Similar to the Snippets view that comes with the Web Tools Project, this plug-in allows you to
drag and drop pieces of code into the editor. We follow object-oriented best practices so the snippets can be loaded from any source,
such as a database (like Apache Derby), filesystem, or Web service.
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Articles |
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26 Jun 2007 |
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The Geronimo renegade: What's new in OpenEJB 3.0
The Java 2 Platform, Enterprise Edition (J2EE) specification made Java technology the
premier technology for enterprise application development. It has evolved over the
years to maintain that position, especially with the Java Platform, Enterprise Edition 5 (Java
EE 5) specification. OpenEJB has been an integral part of Geronimo since its
inception. Its 3.0 release is a key part of Geronimo's implementation of the Java EE
5 specification. In this installment, the renegade uncovers the driving forces
behind Enterprise JavaBeans (EJB) 3 and how OpenEJB has stepped up to provide bold new features to Geronimo.
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Articles |
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26 Jun 2007 |
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Speed development with Eclipse wizards
One of the greatest features of the Eclipse framework and integrated development
environment (IDE) is its extensibility. In this article, you'll learn how to quickly build a wizard that automates the
process of adding a new file. Because the contents of the file can be predefined, the wizard enables better development through consistency and
automation.
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Articles |
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21 Jun 2007 |
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Develop with Java and PHP technology on AIX Version 5.3, Part 1: Setting up the Java environment
Develop a Java(TM) application on AIX(R) and learn how to extend it by using
a PHP interface to look at the underlying Java code. It is possible to develop
applications that employ both Java and PHP technology on AIX. You can use Java code
for the core logic (or redeploy an existing Java-based application), while gaining
the benefits of PHP as a Web-based interface platform. This article, the first in a
series, examines the basics of the Java programming language and PHP integration
methods on AIX, provides a quick overview of a sample application that uses this
structure, and then looks at the core elements required before you start developing
the application itself by installing the Java programming language and Apache
Tomcat.
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Articles |
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20 Jun 2007 |
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Simplify Ajax development using Cypal Studio for GWT
Using the Google Web Toolkit (GWT), a Java programmer can write rich Asynchronous JavaScript + XML (Ajax) applications completely
in the Java programming language. Cypal Studio for GWT, designed for the Eclipse IDE, provides support for managing GWT constructs.
Learn how Cypal Studio for GWT helps create new GWT modules, supports the creation of remote procedure calls, and makes it easy to view
and deploy your Web applications.
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Articles |
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19 Jun 2007 |
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End-to-end Ajax application development, Part 2: Implement the Ajax client and server tiers
Ajax (Asynchronous JavaScript + XML) is quickly emerging as a modern way of bringing desktop quality software features to Web applications running on browser platforms. This article is second of a three-part series where you can continue learning about developing an end-to-end Ajax application using technologies available from the open-source community.
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Articles |
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19 Jun 2007 |
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Create an asynchronous message framework with Ajax and Apache Geronimo
Combine Apache Geronimo with an Asynchronous
JavaScript + XML (Ajax) user interface (UI), an asynchronous messaging system, and loosely coupled business services
to build a responsive, enterprise-grade Web application framework.
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Articles |
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19 Jun 2007 |
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Embedding Hamlets
The open source Hamlets framework can help aid your Web development and properly separate content from presentation. The OSGi framework provides an excellent tool for development on embedded devices. Together, the two frameworks work as a team to provide browser-based interactivity to the humblest gadgets -- such as the lowly coffee maker. Read on to find out how it works.
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Articles |
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19 Jun 2007 |
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Turn your existing systems into an SOA platform using Apache Synapse
If you're planning to transform your existing middleware into a
Service-Oriented Architecture (SOA) platform, consider using Apache Synapse. This
easy-to-use open source alternative to proprietary Enterprise Service Buses (ESBs) costs less and requires less effort. This
article gives you a thorough introduction to Apache Synapse and provides a use case
to demonstrate how you can integrate and reuse existing applications using an SOA
approach.
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Articles |
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14 Jun 2007 |
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Know your regular expressions
You can build and test regular expressions (regexps) on UNIX(R) systems in several
ways. Discover the available tools and techniques that can help you learn how to
construct regular expressions for various programs and languages.
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Articles |
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14 Jun 2007 |
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Build DocBook XML in Eclipse
DocBook XML is a library of standard XML tags you can use to write stylesheets for generating almost any output. However, because
DocBook has been around for quite some time, many stylesheets already exist for generating different types of documentation. Learn how to use
DocBook XML and the Eclipse IDE together to create reusable technical documentation that you can easily distribute in most formats.
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Articles |
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12 Jun 2007 |
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Seamless JSF, Part 3: Ajax for JSF
JSF's component-based methodology encourages abstraction,
but most Ajax implementations interfere with it by exposing the
underlying HTTP exchange. In this final article in the Seamless JSF series, Dan Allen shows you how to use the
Seam Remoting API and Ajax4jsf components to communicate with managed beans on
the server as if they were local to the browser. You'll learn how surprisingly
easy it is to leverage Ajax as a natural improvement on JSF's event-driven
architecture and how to do so without compromising the JSF component model.
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Articles |
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12 Jun 2007 |
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Turbocharge Ruby on Rails with ActiveScaffold
Save time and headaches, and create a more easily maintainable set of pages,
with the Ruby on Rails ActiveScaffold plugin. ActiveScaffold handles all your CRUD
(create, read, update, delete) user interface needs, leaving you more time to focus
on more challenging (and interesting!) problems.
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Articles |
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08 Jun 2007 |
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Tuning LAMP systems, Part 3: Tuning your MySQL server
Applications using the LAMP (Linux, Apache, MySQL, PHP/Perl) architecture
are constantly being developed and deployed. But often the server administrator has
little control over the application itself because it's written by someone else.
This series of three articles discusses many of the server configuration items that
can make or break an application's performance. This third article, the last in the
series, focuses on tuning the database layer for maximum efficiency.
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Articles |
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07 Jun 2007 |
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Convert XML to JSON in PHP
With the growing popularity of Web 2.0, a new data interchange format called JavaScript Object Notation (JSON) is emerging as a useful way to represent data in the business logic running on browsers. Learn how PHP-based server programs can convert XML-formatted enterprise application data into JSON format before sending it to browser applications.
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Articles |
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05 Jun 2007 |
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Search smarter with Apache Solr, Part 2: Solr for the enterprise
Lucene Java committer Grant Ingersoll rounds out his introduction to Solr with a survey of its features for the enterprise, including administration interfaces, advanced configuration options, and performance features such as caching, replication, and logging.
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Articles |
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05 Jun 2007 |
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End-to-end Ajax application development, Part 1: Set up an Ajax environment with a scenario
Ajax (Asynchronous
JavaScript + XML) is quickly emerging as a modern way of bringing desktop-quality
software features to Web applications running on browsers. Open source software such
as Linux-Apache-MySQL-PHP (LAMP) and open standards-based J2EE middleware, such as
WebSphere Application Server Community Edition, provide excellent capabilities to
develop and deploy Ajax Web applications. This article is the first of a three-part
series about developing an end-to-end Ajax application using an open source middleware
stack. If you're a novice Web developer who can read and understand the code written
in XHTML, CSS, JavaScript, PHP, and SQL, then this article is for you. After you're done, you will have a good understanding of the basic concepts of Ajax and its potential in the context of a three-tier Web application scenario.
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Articles |
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05 Jun 2007 |
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Develop your own weather maps and alerts
Traditional weather reports will give notice of vague forecasts and severe weather alerts in your general area. The code and tools
presented in this article will allow you to create precise detection zones so you can receive a page, SMS, or e-mail a few minutes before a
precipitation event is likely to occur at the monitored location. Use GD and Perl for image processing of the NOAA WSR-88D radar data to
create your own precipitation alerts for precise areas. Choose your notification method and let users know when the rain will begin and when
it will clear.
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Articles |
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05 Jun 2007 |
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Aperi Storage Management Project introduction, Part 2
Learn how an administrator can
use the topology viewer to explore the details in the disc arrays in the demo storage environment.
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Demos |
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30 May 2007 |
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Java profiling with Eclipse test and performance tools platform
This demo shows you how to use the Eclipse test and performance tools platform to profile a Java application. Along the way, you will learn how to analyze a Java application using execution time analysis, basic memory analysis, code coverage statistics, and create an automatically generated UML2 sequence diagram showing class interactions.
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Demos |
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30 May 2007 |
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Aperi Storage Management Project introduction, Part 1
Become familiar with the Aperi’s user interface and some of the main functions
of the topology viewer. Learn how an administrator can use the topology viewer to
explore the storage environment to monitor the health status of the various elements
in it. This demo uses the topology viewer to zoom into and out of one of the storage
fabrics to view the status of its switches and ports, as well as the elements that were attached to them.
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Demos |
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30 May 2007 |
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Unit testing the Eclipse way
Does your legacy code demand a matching test suite of classes to run against its source code base? For such purposes, jMock qualifies
as a great testing framework. However, not all cases may suit the occasion, especially when you must construct objects in a manner that jMock
doesn't expect. To avoid the hassle of producing suites of custom mock objects to support the unit tests in an application, you can tailor RMock to
work with jMock seamlessly to achieve a positive result.
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Articles |
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29 May 2007 |
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Securing Java applications with Acegi, Part 2: Working with an LDAP directory server
With the basics out of the way, you're ready to discover the more advanced
uses of Acegi Security System. In this article, Bilal Siddiqui shows you how to
combine Acegi with an LDAP directory server for flexible, high performance Java
application security. Learn how to write an access control policy and store it in
ApacheDS, and then configure Acegi to interact with the directory server for
authentication and authorization purposes.
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Articles |
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29 May 2007 |
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Search smarter with Apache Solr, Part 1: Essential features and the Solr schema
Solr is an enterprise-ready, Lucene-based search server
that supports faceted searching, hit highlighting, and multiple output
formats. In this two-part article, Lucene Java committer Grant Ingersoll
introduces Solr and shows you how to easily incorporate its impressive full-text search functionality into your Web applications.
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Articles |
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29 May 2007 |
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Test GUI accessibility the Eclipse RAVEN way
The IBM Rule-based Accessibility Validation Environment (RAVEN) is an Eclipse plug-in that provides runtime checking of GUI
components to ensure consistent use of Java accessibility features. This article reviews the RAVEN tool and provides examples of its use in
validating a Java Swing application.
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Articles |
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22 May 2007 |
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Apache
Derby project resources
Find complete listings of the articles, tutorials, project info, and news you
need to stay up to date on developing with Apache Derby projects.
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22 May 2007 |
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The busy Java developer's guide to db4o: Database refactoring with db4o
Refactoring Java code is far simpler than refactoring a relational database, but fortunately that isn't so much the case with object databases. In this installment of The busy Java developer's guide to db4o, Ted Neward introduces you to yet another advantage of his favorite object database: db4o simplifies refactoring to the point where it's almost trivial.
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Articles |
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22 May 2007 |
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Linux tip: Bash parameters and parameter expansions
Do you sometimes wonder how to use parameters with your scripts, and how to
pass them to internal functions or other scripts? Do you need to do simple validity
tests on parameters or options, or perform simple extraction and replacement
operations on the parameter strings? This tip helps you with parameter use and the
various parameter expansions available in the bash shell.
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Articles |
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16 May 2007 |
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What's new in PHP V5.2, Part 5: Tracking file upload progress
PHP V5.2 added hooks for developers to take advantage of tracking file upload progress in real time. This article, Part 5 of a five-part "What's new in PHP V5.2" series, shows how to monitor file uploads and write code accordingly, with the creation of a PHP progress bar.
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Articles |
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15 May 2007 |
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Eclipse project management with JFeature
Just about every project needs a project manager (even if that happens to be you, the developer). And since all the items that accompany projects can get out of hand and lost in all the hustle and bustle, project managers need good software to manage all the requirements and to-dos in their projects. Eclipse is an excellent platform for such software, and JFeature is an Eclipse plug-in that has the features project managers look for. This tutorial shows you how to use the JFeature plug-in for Eclipse to its fullest potential. You'll learn how to get up to speed using JFeature for your project management needs.
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Tutorials |
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15 May 2007 |
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Explore relationships among Web pages visually
The Graphviz program from AT&T Research and others is a fantastic tool for automating the visualization of complicated link sets. This article shows how to combine the Graphviz tool set with Web-page thumbnail generators to create new ways of visualizing any Web page's link structures. You can use these techniques and descriptions to refine your display logic, and create directed and undirected Graphviz charts to enhance your understanding of organizational, software, and other complex linked data sets.
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Articles |
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15 May 2007 |
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Brand your Eclipse RCP applications
This article provides step-by-step guidelines on how to package and manage a Rich Client Platform (RCP) application as a product with your own branding by using Eclipse's Production Configuration and PDE. Besides common concepts such as splash screen and an icon file's color and size, this article also introduces advanced branding aspects of production configuration: the RCP executable file and its configuration file, progress bar and message, RCP window image, About dialog and welcome page (i.e., introduction). With this article, you can grasp the main skills on encapsulating your RCP application as a distributable product, independent of Eclipse platform.
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Articles |
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08 May 2007 |
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Simplify Eclipse classpaths using classpath containers
Eclipse classpath containers are an organized, user-friendly way to manage Java libraries in Eclipse. Since a group of libraries can be referenced as one abstract name, they can be removed and added as a single entry easily. The view of the libraries is also simplified in the Java Perspective as a single entry that can be expanded to view the entire set. Since the set of libraries is defined by an implementation of IClasspathContainer, it can be redefined dynamically. This tutorial shows how to implement a custom IClasspathContainer with accompanying extensions of classpathContainerInitializer and classpathContainerPage.
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Tutorials |
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08 May 2007 |
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Developing Web applications with Tomcat and Eclipse
Using Eclipse as a Web development platform is even easier when you integrate it directly with Apache Tomcat. Learn how to set up Eclipse and Apache Tomcat V5.5 to develop the quintessential Hello World servlet.
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Articles |
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08 May 2007 |
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Build a simple C++ service component, Part 2: Using Python, Ruby, and Web services with the service component architecture
You can use your existing code to create service components. Learn how to expose your scripts as SCA components and Web services using the Python, Ruby,
and Web services support in Apache Tuscany SCA for C++. Create reusable, composable
SCA components that are linked together within composites and exposed and invoked
using whichever technologies are most suitable to the system being built.
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Articles |
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03 May 2007 |
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The Open Group certification program: Get certified for the job you're doing
The IT Architecture Certification (ITAC) by The Open Group stands out among other
certifications. Unlike the Microsoft, Cisco, or other brand-specific certifications, ITAC
holders aren't preprogrammed with vendor solutions. In a world of Linux, Windows, and Apple
operating systems working on a multitude of hardware platforms, IT engineers must be
highly flexible. The Open Group's mission is to share information across platforms without risk to
security or performance. Discover what the benefits of obtaining the ITAC are and what
they can mean to you and your business.
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Articles |
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01 May 2007 |
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Debugging with the Eclipse Platform
Find out how to use the built-in debugging features in the Eclipse Platform for debugging software projects. Debugging is something programmers can't avoid. There are many ways to go about it, but it essentially comes down to finding the code responsible for a bug. For example, one of the most common errors in Linux applications is known as a segmentation fault. This occurs when a program attempts to access memory not allocated to it and terminates with a segmentation violation. To fix this kind of error, you need to find the line of code that triggers the behavior. Once the line of code in question has been found, it is also useful to know the context in which the error occurs, and the associated values, variables, and methods. The use of a debugger makes finding this information quite simple.
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Articles |
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01 May 2007 |
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What's new in PHP V5.2, Part 4: Using the new ZIP extension
ZIP? It's about time! PHP just added ZIP features to PHP V5.2. This article, Part 4 of a five-part "What's new in PHP V5.2" series, shows you how to make the most of this new feature by creating, editing, uploading and reading, and creating and downloading ZIP files. After reading this article, you will be well versed in the art of ZIP files using the latest ZIP PHP extension in PHP V5.2, so you can reduce bandwidth overhead or storage usage when handling large files with PHP.
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Articles |
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01 May 2007 |
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PHP and RSS: Getting it together
RSS Syndication is virtually ubiquitous these days, so it's imperative that a PHP developer at least understand RSS and how it works. This article explains the basics of RSS, some of its many uses, how to use PHP to create an RSS feed from a database, and how to use the XML_RSS module to read an existing RSS feed and translate it into HTML.
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Articles |
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01 May 2007 |
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Second Life client, Part 2: Digging into the documentation
The developer documentation in the Second Life client takes the form of a
wiki. In Part 2 of our ongoing exploration of the Second Life software, take a look
at that documentation, and use it to jump-start some modifications to the client.
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Articles |
|
30 Apr 2007 |
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| |
Tuning LAMP systems, Part 2: Optimizing Apache and PHP
Applications using the LAMP (Linux, Apache, MySQL, PHP/Perl) architecture
are constantly being developed and deployed. But often the server administrator has
little control over the application itself because it's written by someone else.
This series of three articles discusses many of the server configuration items that
can make or break an application's performance. This second article focuses on steps
you can take to optimize Apache and PHP.
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Articles |
|
30 Apr 2007 |
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| |
Second Life client, Part 3: Adding simple translation to Second Life
In the last part of our exploration of the Second Life software, learn how
to plug a simple command-line program into Second Life that provides a language
translation function.
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Articles |
|
30 Apr 2007 |
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Download Eclipse Callisto
Are you a Java EE developer? Download Eclipse open source software bundles for
free from developerWorks, including Callisto and Europa simultaneous release projects,
and get started developing with Eclipse frameworks today.
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27 Apr 2007 |
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Create custom data charting tools using Perl and GD
Create professional-looking charts for data visualization using Perl and GD. Move beyond standard pie charts to incorporate annotations, indicators, and layering for enhanced informational delivery.
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Articles |
|
24 Apr 2007 |
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Sugar, the XO laptop, and One Laptop per Child
One Laptop per Child (OLPC) is an organization whose mission is to develop
a low-cost laptop (USD100) with accompanying software to spread computer literacy to
children around the world. Because the device targets children, it must provide a
novel user interface and applications that allow children to experiment with tools
for expression and learning. The operating system for the OLPC is a port of the
Linux kernel but with a unique interface called Sugar. In this article, learn about the
Sugar human interface, see how to virtualize an OLPC laptop on a standard PC using
QEMU, and take a tour of Sugar and the OLPC capabilities.
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Articles |
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24 Apr 2007 |
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Make PHP apps fast, faster, fastest, Part 3: Cache your data in memory with the Memcache daemon
This "Make PHP apps fast, faster, fastest" series explores XCache and XDebug, and now the Memcache daemon. The Memcache daemon (memcached) is a high-performance distributed object cache. Installed between your application and your data store, memcached persists your objects in RAM. Each cache hit replaces a roundtrip to a database server, making your application run faster.
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Articles |
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24 Apr 2007 |
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Discover the Linux Kernel Virtual Machine
Linux and flexibility go hand in hand, and the options for virtualization are no different. But recently, a change in the Linux virtualization landscape has appeared with the introduction of the Kernel virtual Machine, or KVM. KVM is the first virtualization solution to be part of the mainline Linux kernel (V2.6.20). KVM supports the virtualization of Linux guest operating systems -- even Windows with hardware that is virtualization-aware. Learn about the architecture of the Linux KVM as well as why its tight integration with the kernel may change the way you use Linux.
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Articles |
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18 Apr 2007 |
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Developing with Apache Derby -- Hitting the Trifecta: Java database development with Apache Derby, Part 4
Learn about SQL cursors and how you can use them to perform dynamic data
modification in an Apache Derby database. You can use SQL cursors both explicitly by
using the ij tool or implicitly by calling the appropriate Java methods. By
mastering this functionality, you can write Java applications that can selectively
modify data for your business applications.
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Articles |
|
17 Apr 2007 |
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Eclipse IDE project resources
Project information for Eclipse IDE developers,
including latest articles and tutorials published, as well as other valuable Eclipse resources.
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17 Apr 2007 |
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Ruby on Rails and XML
You've very likely heard of Ruby on Rails. Maybe you've actually used it; perhaps it is your new programming mistress. Whatever the case, it looks like Rails is here to stay, and to everyone's benefit. Ruby plays very nicely with XML -- read further for the details.
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Tutorials |
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17 Apr 2007 |
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An Eclipse Nebula widgets primer
The SWT toolkit offers a robust interface to the native widgets of the operating system it's running on. However, native widgets often aren't enough. The Eclipse Nebula project is working to bridge this gap with custom widgets for functionality, including calendaring and advanced tables. This tutorial demonstrates five Nebula widgets, including Grid, CDateTime, CompositeTable, PGroup, and PShelf.
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Tutorials |
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17 Apr 2007 |
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Create geographical plots of your data using Perl, GD, and plot-latlong
Using world and custom U.S. maps, Perl, GD, and the Cooperative Association for Internet Data Analysis (CAIDA) plot-latlong tool, this article demonstrates how to create your own effective data visualizations in the spirit of Google maps and the U.S. national atlas.
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Articles |
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10 Apr 2007 |
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Lights, camera, ActionScript 3.0!
ActionScript 3.0 is a powerful object-oriented programming language that signifies an important step in the evolution of the Flash Player Runtime. The motivation behind ActionScript 3.0 was to create a language ideally suited for rapidly building rich Internet applications, which have become an essential part of the Web experience.
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Articles |
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10 Apr 2007 |
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Emacs editing environment, Part 2: Learn the essential modes and editing features of Emacs
One of the powerhouses of UNIX computing, the open source Emacs editor is
a large, complex application that does everything from edit text to function as a
complete development environment. This tutorial, the second in a series, introduces
you to some of the essential concept of modes, shows you some of the powerful text
manipulation functions available, and teaches you how to use the built-in search,
replace, and spell check facilities of Emacs.
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Tutorials |
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10 Apr 2007 |
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Develop and deploy Apache Pluto portal applications on Apache Geronimo
Even though preintegrated portal server support is missing from Apache Geronimo's feature set, you can still use Geronimo as a testing and deployment environment for portal applications. This article takes you step by step through deployment of the Apache Pluto driver and container in Geronimo to give you a 100% open source environment for your portal applications. Then learn how to develop, deploy, and test a sample portal application in Pluto and Geronimo.
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Articles |
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10 Apr 2007 |
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Create an interactive production wiki using PHP, Part 5: The open blog
This "Create an interactive production wiki using PHP" tutorial series creates a wiki from scratch using PHP, with value-added features useful for tracking production. Wikis are widely used as tools to help speed development, increase productivity and educate others. Each part of the series develops integral parts of the wiki until it is complete and ready for prime time, with features including file uploading, a calendaring "milestone" system, and an open blog. The wiki will also contain projects whose permissions are customizable to certain users and will contain projects whose permissions are customizable to certain users. In Part 4 we added some task management. Now you will create an open blog, which will allow users a place to hold public discussions.
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Tutorials |
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10 Apr 2007 |
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Training
Start here to find the tutorials and courses you need to stay up to date with open source projects and to keep your skills top notch.
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05 Apr 2007 |
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Ajax RSS reader
Learn how to build an Asynchronous JavaScript and XML (Ajax) Really Simple Syndication (RSS) reader, as well as a Web component that you can place on any Web site to look at the articles in the RSS feeds.
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Articles |
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03 Apr 2007 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 15: Lessons learned
In this series, the IBM Internet Technology Group designs, develops, and deploys an extranet Web site for a fictitious company, International Business Council (IBC), using a suite of freely available software. You explore the complete life cycle of developing a collaborative Web site with Drupal driven by Apache, PHP, and MySQL. In this article, the team shares lessons learned from the experience and describes what's coming up next with Drupal 5.0.
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Articles |
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03 Apr 2007 |
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Create an interactive production wiki using PHP, Part 4: Task management
This "Create an interactive production wiki using PHP" tutorial series creates a wiki from scratch using PHP, with value-added features useful for tracking production. Wikis are widely used as tools to help speed development, increase productivity and educate others. Each part of the series develops integral parts of the wiki until it is complete and ready for prime time, with features including file uploading, a calendaring "milestone" system, and an open blog. The wiki will also contain projects whose permissions are customizable to certain users and will contain projects whose permissions are customizable to certain users. In Part 3, we added some control over who can do what. Now it's time to add some task management.
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Tutorials |
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03 Apr 2007 |
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Get started with Jigloo, a GUI builder for Eclipse
Jigloo is an Eclipse plug-in that enables you to build sophisticated graphical user interfaces (GUIs) rapidly that run on the Java platform. It can be used to build Swing-based applications and Standard Widget Toolkit (SWT)-based applications. It is an easy-to-use visual editor, so you can create the UI for your desktop application quickly. In this tutorial, we build a simple workflow application and use Jigloo to create its UI. Learn how easy it is to get started with Jigloo and to tap into its advanced features, such as visual inheritance. Finally, we test an application and package it for others to use.
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Tutorials |
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03 Apr 2007 |
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Virtualization with coLinux
Virtualization with VMware, Xen, and Kernel-based Virtual Machine (KVM) are
all the rage these days. But did you know that you can run Linux cooperatively with
Microsoft Windows? This article explores Cooperative Linux (coLinux), starting with
a quick introduction to virtualization and then looking at the approach taken by
coLinux. You'll also see how to get coLinux up and running on Windows.
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Articles |
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31 Mar 2007 |
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Tuning LAMP systems, Part 1: Understanding the LAMP architecture
Applications using the LAMP (Linux, Apache, MySQL, PHP/Perl) architecture
are constantly being developed and deployed.
But often the server administrator has little control over the application itself
because it's written by someone else. This series of three articles discusses many
of the server configuration items that can make or break an application's
performance. This first article covers the LAMP architecture, some measurement
techniques, and some basic Linux kernel, disk, and file system tweaks. Successive articles investigate tuning the
Apache, MySQL, and PHP components.
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Articles |
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31 Mar 2007 |
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Charming Python: Python elegance and warts, Part 1
Since the "golden age" of Python 1.5.2 -- for a long time a stable and solid
version -- Python has greatly increased its number of syntactic features and
built-in functions and types. Each of these additions has reasonable justification,
in isolation, but taken as a whole, they make Python no longer a language that
experienced programmers can pick up "in an afternoon." Moreover, some of the changes
have pitfalls along with benefits.
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Articles |
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28 Mar 2007 |
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What's new in PHP V5.2, Part 3: Using the new JSON extension
PHP continues to evolve and incorporate useful standards as they are created and adopted among Internet application developers. PHP just added a JavaScript Object Notation (JSON) extension to PHP V5.2, which was previously only available as add-on framework classes. This addition provides PHP developers with better support for Ajax applications using JSON. This article, Part 3 of a five-part "What's new in PHP V5.2" series, shows how to use this application effectively, and after completing this article, you will be proficient at using the built-in JSON extensions with PHP for your Ajax applications.
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Articles |
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27 Mar 2007 |
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Second Life client, Part 1: Hacking Second Life
The open source release of the Second Life viewer program by developer
Linden Lab offers a rare opportunity to peer into the comparative strengths of
closed and open source development models. This article, the first in a series,
gives an overview of some of the differences between these development styles, and
talks about what's involved in setting up your own build environment.
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Articles |
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27 Mar 2007 |
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The busy Java developer's guide to db4o: Queries, updates, and identity
Whereas the RDBMS uses SQL as its principal mechanism for
finding and retrieving data, an OODBMS can use one of several different
mechanisms. In this second installment of his series, Ted Neward introduces a few of the options, including Query by
Example and custom mechanisms unique to the OODBMS. As he explains, some
of the alternatives can be easier to use than SQL itself.
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Articles |
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27 Mar 2007 |
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Mastering Ajax, Part 10: Using JSON for data transfer
Plain text and XML are both data formats that you can use for sending and receiving information in your asynchronous applications. This installment of "Mastering Ajax" looks at another useful data format, JavaScript Object Notation (JSON), and how it makes moving data and objects around in your applications easier.
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Articles |
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27 Mar 2007 |
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Use the Eclipse SOA Tools Platform plug-in to build and deploy a Web service
Work on the Eclipse SOA Tools Platform (STP) plug-in is well under way, and we should expect lots of new features to aid Service-Oriented Architecture (SOA) deployment in the coming months. The Eclipse STP became the ninth top-level project for the Eclipse organization in 2005, and since then, development has come a long way. With the Eclipse STP plug-in, you can go from a Java interface, annotate it with Web service-related properties, create a Web Services Description Language (WSDL) for the Web service, generate and code Java stubs you can then compile into a WAR file, and deploy on your favorite Web server. This tutorial shows you how to accomplish all this using the Eclipse STP plug-in.
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Tutorials |
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27 Mar 2007 |
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Create an Eclipse-based application using the Graphical Editing Framework
Learn the initial steps involved in creating an Eclipse-based application using the Graphical Editing Framework (GEF). Also, discover the options you have these days to bootstrap the process of creating graphical editors in Eclipse.
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Articles |
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27 Mar 2007 |
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Automate Web service testing, Part 2: Test a Web service with XMLUnit
This tutorial series, developed for testers and developers who are interested in functional Web service testing, walks you through automating typical Web service testing using technologies, such as JUnit, Apache Commons HttpClient, and Apache XMLUnit. In this installment, Part 2, you'll learn how to create a simple Web service, how to use HttpClient to invoke a Web service, and how to compare the expected response and actual response using XMLUnit. The authors demonstrate these techniques on the IBM Rational Software Architect development platform.
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Tutorials |
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26 Mar 2007 |
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Apache Derby resources from the Web services perspective, Part 3: Manage Apache Derby using Web Services Distributed Management
So far in this three-part tutorial series about the concept of WS-resources and the Web Services Resource Framework (WSRF), you've created a Person resource and learned how to use WS-Notifications with it. This final installment shows you how to look at WS-Resources from a different perspective -- that of a tangible item rather than a set of information. You'll create a Web service to control the Apache Derby database you've been using throughout this project as well as the client that treats Derby as a WS-Resource.
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Tutorials |
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23 Mar 2007 |
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Transform Java classes into Web services using Axis2 and JiBX, Part 2: Turn your XML into a fully functional Web service
XML is powerful in that it can be used to define just about anything. What's more, it is the basis for an externally readable format for a majority of applications, most notably for the purposes of this series, Axis2 and JiBX. On top of that, as Web services become more and more ubiquitous, turning your legacy Java(TM) projects into full-fledged Web services is increasingly becoming a priority. Unlike in the past when the automatic generation of Web services was limited to a service and a single class, developers now have the option to generate a service or multiple services from the various Java classes in their existing projects. This article, the second part in a series of 2, uses Axis2 and JiBX to go from XML to a fully functional Web service from existing Java classes.
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Articles |
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22 Mar 2007 |
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LDAP search engines, Part 2: Adding a scoring system
Learn how to add a scoring system to the search engine described in "LDAP search engines, Part 1." Develop your own metaphone-matching techniques for spelling corrections, query suggestions, and effective display of search results.
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Articles |
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20 Mar 2007 |
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Create an interactive production wiki using PHP, Part 3: Users and permissions
This "Create an interactive production wiki using PHP" tutorial series creates a wiki from scratch using PHP, with value-added features useful for tracking production. Wikis are widely used as tools to help speed development, increase productivity and educate others. Each part of the series develops integral parts of the wiki until it is complete and ready for prime time, with features including file uploading, a calendaring "milestone" system, and an open blog. The wiki will also contain projects whose permissions are customizable to certain users. In Part 2, you got the basic wiki working. Now it's time to add some control over who can do what when accessing Criki.
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Tutorials |
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20 Mar 2007 |
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The busy Java developer's guide to db4o: Introduction and overview
This first article in a multipart series introduces db4o and explains why it has become an important alternative to today's relational databases.
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Articles |
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20 Mar 2007 |
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Transform Java classes into Web services using Axis2 and JiBX, Part 1: Use XML to define a Web service from your Java classes
XML is powerful in that it can be used to define just about anything. What's more, it is the basis for an externally readable format for a majority of applications, most notably for the purposes of this series, Axis2 and JiBX. On top of that, as Web services become more and more ubiquitous, turning your legacy Java(TM) projects into full-fledged Web services is increasingly becoming a priority. Unlike in the past, when the automatic generation of Web services was limited to a service and a single class, developers now have the option to generate a service or multiple services from the various Java classes in their existing projects. This article, Part 1 of a two-part series, uses XML to define a Web service from existing Java classes.
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Articles |
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20 Mar 2007 |
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What's new in PHP V5.2, Part 2: Using the new input filtering extensions
In Part 2 of this "What's new in PHP V5.2," learn how to effectively use the new input filtering extensions provided by the new PHP V5.2. This is a much-needed feature that will allow you to validate inputs to forms and other input mediums without having to rely on third-party software. After reading this, you will be effective at filtering inputs to increase application security.
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Articles |
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20 Mar 2007 |
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The Axis2 Deployment model, Part 1: Six ways the Axis2 deployment model is more user friendly
Tired of spending time deploying multiple services? Have to restart your server every time you make a change? Apache Axis2 might be the answer. Axis2 is gaining popularity by being a clean and extensible open source Web services platform. It has some major improvements over the Apache SOAP family, many of which Axis2 deployment has benefited from. Explore some of the most notable new features that make the Axis2 deployment model so much more convenient than Axis1.
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Articles |
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15 Mar 2007 |
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Command-line PHP? Yes, you can!
Learn how to debug PHP code from the command line and examine the strengths of PHP as a shell scripting language unto itself.
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Articles |
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13 Mar 2007 |
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Programming Hamlets
This tutorial illustrates various aspects of Hamlet programming as it provides a number of practical Hamlet examples. The examples are part of WebZEC (Web-based Zurich Event Console) -- a fast, browser-based console to quickly navigate in intrusion-detection alarms. With these samples, you can develop a good understanding how to use Hamlets for Web-based application development and how Hamlets work.
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Tutorials |
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13 Mar 2007 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 14: The announcement module source code
Follow along in this series of articles as the IBM Internet Technology Group designs, develops, and deploys an extranet Web site for a fictitious company, International Business Council (IBC), using a suite of freely available software. In this article, you get the announcement module, which is used as an example throughout this series. All the functions from this module are presented here and can be downloaded in a single file. In the final installment, Part 15, you get a brief review of the entire series.
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Articles |
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13 Mar 2007 |
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XML for PHP developers, Part 3: Advanced techniques to read, manipulate, and write XML
This final article in a three-part series discusses more techniques for reading, manipulating, and writing XML in PHP5. In it, you will focus on the now familiar APIs DOM and SimpleXML in more sophisticated surroundings, and, for the first time in this three-part series, on the XSL extension.
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Articles |
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13 Mar 2007 |
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Put Muse and Eclipse TPTP WSDM tools to work
Learn how to install Apache Muse, the stable release of the Web Services Distributed Management (WSDM) Tooling in Eclipse TPTP 4.3, and the latest development builds of WSDM Tooling in TPTP 4.4. With this tutorial, a stand-alone "prequel" to the tutorial on crafting a WSDM endpoint using the Eclipse TPTP Build to Manage tooling, you'll be a master of installation.
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Tutorials |
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13 Mar 2007 |
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What's new in PHP V5.2, Part 1: Using the new memory manager
In Part 1 of this "What's new in PHP V5.2" series, learn how to use the new memory manager introduced in PHP V5.2 and become proficient at memory usage tracking and monitoring. This will enable you to more use memory in PHP V5.2 more efficiently.
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Articles |
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13 Mar 2007 |
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The ultimate mashup -- Web services and the semantic Web, Part 4: Create an ontology
This series details the creation of a mashup application that gives control over the data displayed back to the user; to do that, you need to build in intelligence. Now that you know how to represent information in RDF, you can start to create an ontology using the XML-based Web Ontology Language (OWL), which will enable you to automatically choose between services and parts of services.
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Tutorials |
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08 Mar 2007 |
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The ultimate mashup -- Web services and the semantic Web, Part 5: Change out Web services
This series details the creation of a mashup application that gives control over the data displayed back to the user. Now that you know how to create an ontology that defines the concepts represented by a service, you can enable users to choose which service they want to use.
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Tutorials |
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08 Mar 2007 |
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XML for PHP developers, Part 1: The 15-minute PHP-with-XML starter
This first article of a three-part series introduces PHP5's XML implementation and helps those relatively new to using XML with PHP to read, parse, and manipulate, and write a short and uncomplicated XML file using the DOM and SimpleXML in a PHP environment.
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Articles |
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07 Mar 2007 |
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Parallelize applications for faster Linux booting
One of the biggest complaints about Linux, particularly from developers, is the
speed with which Linux boots. By default, Linux is a general-purpose operating system
that can serve as a client desktop or server right out of the box. Because of this
flexibility, Linux serves a wide base but is suboptimal for any particular
configuration. This article shows you options to increase the speed with which Linux
boots, including two options for parallelizing the initialization process. It also shows
you how to visualize graphically the performance of the boot process.
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Articles |
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07 Mar 2007 |
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Tip: Configure Apache to send the right MIME type for XHTML
This tip shows you how to configure Apache to tag Extensible Hypertext Markup Language (XHTML) documents with the media type application/xhtml+xml for browsers that support it, while still sending text/html to nonconformant browsers such as Microsoft Internet Explorer.
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Articles |
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06 Mar 2007 |
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Create an interactive production wiki using PHP, Part 2: Developing the basic wiki code
This "Create an interactive production wiki using PHP" series creates a wiki from scratch using PHP, with value-added features useful for tracking production. Wikis are widely used as tools to help speed development, increase productivity, and educate others. Each part of the series develops integral parts of the wiki until it is complete and ready for primetime, with features including file uploading, a calendaring "milestone" system, and an open blog. The wiki will also contain projects whose permissions are customizable to certain users.
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Tutorials |
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06 Mar 2007 |
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How to deploy Plants By WebSphere as a distributed application
The Plants by WebSphere application is a sample included in the IBM WebSphere Application Server. Although it is meant to showcase the capabilities of WebSphere Application Server, it is useful in many testing and development scenarios. However, one limitation is that Plants by WebSphere can only execute on a single server, and this effectively makes the application useless is many situations. This tutorial provides a step-by-step guide that outlines how to transform the Plants by WebSphere application into a distributed application.
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Tutorials |
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06 Mar 2007 |
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XML for PHP developers, Part 2: Advanced XML parsing techniques
This second article in a three-part series will discuss XML parsing techniques of PHP5, focusing on parsing large or complex XML documents. It will offer some background about parsing extensions and, specifically, what parsing methods are best suited to what types of XML documents and why.
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Articles |
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06 Mar 2007 |
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Meet the specs: WS-RT 1.0 operations, Part 3
Meet the WS-ResourceTransfer 1.0 initial draft specification, a proposed
open standard that extends certain operations by allowing fragments of XML code in a
single resource to be addressed instead of having to affect the entire resource. This
article provides a closer look at how the WS-ResourceTransfer 1.0 specification handles faults.
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Articles |
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06 Mar 2007 |
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Make PHP apps fast, faster, fastest, Part 2: Profile your PHP application to find, diagnose, and hasten plodding code
If your PHP application is plodding, use a profiler to measure where time is being spent. You can target the statement, loop, function, class, or library that's most sluggish. If time isn't the issue, but rather memory usage, a good profiler can also reveal component footprints.
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Articles |
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06 Mar 2007 |
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Tools and support that meet your needs
Using Eclipse as your development environment? IBM provides you a series of choices for becoming more accountable and productive.
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01 Mar 2007 |
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Build a Fedora Live CD
Though Fedora Linux is a popular and mature Linux distribution, and many
people have created Live CD distributions based on Fedora, the Fedora project itself
didn't released its first official Live CD until December of 2006. Learn how to
build your own custom and easy-to-use Live CDs using a rewrite of Pilgrim, the
Fedora Live CD creation tool.
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Articles |
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28 Feb 2007 |
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Get to know Eclipse User Assistance
This article introduces the Eclipse User Assistance project and discusses the many ways to deliver quality user assistance for your Eclipse-based applications.
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Articles |
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27 Feb 2007 |
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Develop Web applications for local use
Writing local Web applications can be quick, easy, and efficient for solving specific Intranet problems. Understand why a Web browser is sometimes a better interface than a GUI application, and when a CGI script may be the simplest and most elegant solution.
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Articles |
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27 Feb 2007 |
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Customizing Eclipse RCP applications
Most developers think that an Eclipse Rich Client Platform (RCP) application must look similar in nature to the Eclipse integrated development environment (IDE). This isn't the case, however. This tutorial will explain a number of simple techniques you can use with the Standard Widget Toolkit (SWT) and JFace to create applications that have much more personality than the Eclipse IDE.
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Tutorials |
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27 Feb 2007 |
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Make PHP apps fast, faster, fastest, Part 1: Boost performance, throughput with opcode cache software
PHP is a scripting language most often used to create Web applications. It's easy to learn and produces visible results quickly. However, because PHP is interpreted, PHP code is parsed and translated to opcodes every time it executes. An opcode cache eliminates that rework, making PHP applications faster.
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Articles |
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20 Feb 2007 |
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Linux tip: Bash test and comparison functions
Are you confused by the plethora of testing and comparison options in the
Bash shell?
This tip helps you demystify the various types of file, arithmetic, and string tests
so you will always know when to use test, [ ], [[ ]], (( )), or if-then-else
constructs.
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Articles |
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20 Feb 2007 |
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Flip for Flapjax
Meet Flapjax -- a new programming language with an old syntax based on standard JavaScript. With Flapjax you can easily program data sharing, interfaces to external Web services, persistence, and end-user responsiveness in Web applications.
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Tutorials |
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20 Feb 2007 |
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LTA for multievent software problem analysis
Explore a sample symptom catalog and related events that illustrate how the IBM Log and Trace Analyzer (LTA) can help you diagnose software problems when they span multiple systems. This article introduces the LTA and illuminates its problem determination features; discusses symptoms, symptom definitions, events, and the event-symptom relationship; and explains the complexities of multievent symptom management.
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Articles |
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20 Feb 2007 |
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LDAP search engines, Part 1: Use Perl and a regular-expression generator to search for and display LDAP database records
Find out how to use Perl and a regular-expression generator to search and display records from your Lightweight Directory Access Protocol (LDAP) database using simple keyword-type searches. Search and process your LDAP data without knowing precisely which field the data is in or how it is formatted. Part 2 of this "LDAP search engines" series introduces scoring and metaphone suggestions to the code.
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Articles |
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20 Feb 2007 |
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developerWorks chats: Linux on the desktop
Greg Kelleher discusses why Linux can and should be a contender for end-user computing.
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15 Feb 2007 |
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Develop HTML widgets with Dojo
Learn the basics of developing HTML widgets using Dojo; including how to refer an image, how to add an event handler to an HTML page, and how to handle composite widgets. Also, discover some important differences between plain old JavaScript-style coding versus Dojo, and get tips for handling complex issues inherent in Web application development.
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Tutorials |
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14 Feb 2007 |
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The right way to read files with PHP
Learn how to use the different file functions of PHP. Review basic file functions, such as fopen, fclose, and feof, learn reading functions, such as fgets, fgetss, and fscanf. And discover functions that process entire files in one or two lines of code.
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Articles |
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13 Feb 2007 |
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Portland improves Linux desktop portability
Portland is a new open source project that promises to simplify the deployment and commercialization of Linux applications by helping them run on multiple desktop environments, including Gnome and KDE. Although still young, Portland is available today, and it looks to be improving rapidly. Get started using the XdgUtils toolset in Portland 1.0.
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Articles |
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13 Feb 2007 |
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Create fancy on-screen displays with Ghosd and Perl
Use Perl, Ghosd, and some network programming to display on-screen overlays of text and graphics based on messages from your local system and remote computers. Define custom images, font sizes, and colors to convey information integrated with your desktop.
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Articles |
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13 Feb 2007 |
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Use PHP on System i, Part 2: Net.Data and PHP
Compare PHP with the Net.Data server-side scripting language, which IBM develops with DB2(R). Understand the origins of the languages, their syntax differences, usage learning curves, database connections, and other differences. This article is the second part of a series based on working with PHP on System i(TM).
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Articles |
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13 Feb 2007 |
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Why open source for the WSDM open standard?
Get an overview of the run time and tooling for Web Services Distributed Management (WSDM) available in the Apache Muse and Eclipse TPTP (Test and Performance Tools Platform) projects. This article is a companion to the tutorial on creating a WSDM interface and also describes the motivation of building this in open source. Learn how you can influence both the development of the run time and the tooling. In this article, I share with you my personal views on why open source is the best avenue to develop implementations of the WSDM open standard.
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Articles |
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13 Feb 2007 |
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Create an interactive production wiki using PHP, Part 1: Introduction and scaffolding
This "Create an interactive production wiki using PHP" series creates a wiki from scratch using PHP, with value-added features useful for tracking production. Wikis are widely used as tools to help speed development, increase productivity, and educate others. Each part of the series develops integral parts of the wiki until it is complete and ready for primetime, with features including file uploading, a calendaring "milestone" system, and an open blog. The wiki will also contain projects whose permissions are customizable to certain users.
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Tutorials |
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13 Feb 2007 |
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Use PHP on System i, Part 1: Introduction and examples
Learn how to install PHP and DB2(R) on System i(TM), and understand how to port a MySQL application to DB2 on i5/OS(R). Understand the history and architecture types of PHP, including the new architecture that uses i5/OS with an Apache HTTP server and the IBM DB2 database to bring PHP applications to System i(TM). Read examples of PHP Web applications. Learn how PHP applications are especially beneficial to small and medium businesses, because open source PHP applications are often inexpensive and easily accessible. [The product option for the CCA Cryptographic Service Provider has been changed from option 13 to option 35. The title has been changed to indicate the first article in a series. -Ed.]
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Articles |
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08 Feb 2007 |
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Linux tip: Printing DVI files with CUPS
Have you ever tried to print DVI or other files in Linux and gotten an
"unsupported format" message? This tip shows you how to combine existing
tools to make a CUPS print filter for printing DVI files.
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07 Feb 2007 |
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Add ARM performance monitoring easily with Eclipse
The Eclipse Test and Performance Tools Platform (TPTP) project released an open source and Application Response Measurement (ARM) V4.0-compliant implementation in June 2006, based on TPTP V4.2. This tutorial describes the TPTP project and explains how ARM has been implemented and integrated with TPTP. The trade-offs involved in getting to this point are discussed, along with the challenges in moving forward. Specific examples show how to get started using ARM for your application with TPTP.
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Tutorials |
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06 Feb 2007 |
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Remote computing with a Linux application server farm
You've heard of Web 2.0, right? Well, here's "utility computing 2.0," a combination of network booting, SSL, VNC, and other familiar concepts and technologies -- all on Linux -- that can yield dramatic returns on investment. See how the University of California set up a server farm environment to provide secure remote desktop application services for students.
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06 Feb 2007 |
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Building templates with the Eclipse Plug-in Development Environment
This article introduces the creation of templates in Eclipse so you can enhance the experience of your clients. We will develop a simple template as an example of the flexibility PDE's templating system provides.
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06 Feb 2007 |
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Meet the specs: WS-RT 1.0 operations, Part 2
Meet the WS-ResourceTransfer 1.0 initial draft specification, a proposed open standard that extends certain operations by allowing fragments of XML code in a single resource to be addressed instead of having to affect the entire resource. This article provides a closer look at how the WS-ResourceTransfer 1.0 specification extends the Create operation.
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06 Feb 2007 |
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Build Web apps with ThinWire and Java code, Part 3: Styling support
With ThinWire, an open-source development framework, you can build Web applications that look and feel like desktop applications. In this five-part series, you'll learn how to develop rich Web applications using ThinWire and Java programming. Here in Part 3, you learn to use ThinWire styling support at both a global level and an individual component level.
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Tutorials |
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06 Feb 2007 |
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Quality busters: A utility program for every occasion
Utility programs are frequently overlooked when releasing an application for production use, which is unfortunate because they support all kinds of essential operations. This month Michael Russell gets you thinking about utility programs and why to include them in your development plan and budget.
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31 Jan 2007 |
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Web 2.0 user interface technologies
Imagine that you are tasked to create a new application that will live in the Web 2.0 world. Some of your users are perfectly happy with HTML-based user interfaces while others expect every application they use to behave like Excel. Your business sponsor expects a productivity-enhancing user experience, but your CIO won't allow you to develop anything that a user needs to manually deploy. You know HTML won't cut it, but what else is out there? This article explores a series of Web 2.0 user interface technologies that enable you to build applications with better-than-browser user experiences. As a result, you can centrally deploy and manage them just like any other Java(TM) 2 Enterprise Edition (Java EE) application.
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30 Jan 2007 |
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LPI exam 102 prep, Topic 109: Shells, scripting, programming, and compiling
In this tutorial, Ian Shields continues preparing you to take the Linux
Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this fifth
in a series of nine tutorials, Ian introduces you to the Bash shell, and scripts and
programming in the Bash shell. By the end of this tutorial, you will know how to
customize your shell environment, use shell programming structures to create
functions and scripts, set and unset environment variables, and use the various
login scripts.
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Tutorials |
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30 Jan 2007 |
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Developing with Apache Derby -- Hitting the trifecta: Java database development with Apache Derby, Part 2
Get a thorough overview on how to issue a simple database query against an Apache Derby database and how to process the selected results. Doing so requires the introduction of three new JDBC classes: Statement, ResultSet, and ResultSetMetaData. Learn how to use these classes with a JDBC database connection to quickly and easily extract data from an Apache Derby database into your own Java application.
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30 Jan 2007 |
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Two ways to build Apache Derby database applications in JRuby
JRuby is an implementation of the Ruby programming language that runs in the Java Virtual Machine (JVM). This tutorial demonstrates how to install and configure JRuby to connect to the Apache Derby database. As Ruby and Ruby on Rails become more popular, JRuby becomes an interesting technology to leverage the portability, security, and class libraries of the JVM while using Ruby features like simple syntax and closures. If you're writing a small application that needs a relational database, or you want to be able to ship a database with your product, then the Derby database is an excellent choice for a persistence mechanism. This tutorial shows you two methods of connecting to and building Derby database applications from JRuby.
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Tutorials |
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30 Jan 2007 |
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A step-by-step guide to publishing your own PEAR channels
The PHP Extension and Application Repository (PEAR) is a collection of PHP packages built to ease the development required to build an application. V1.4 of the PEAR package manager introduced the concept of channels, which are a way to organize and deliver packages that can be installed with the package manager. This tutorial discusses channels, introduces and explains the channel.xml file, and demonstrates how to build a channel for distributing packages. Channels are ordinarily used to expose PEAR packages through the Internet, but enterprises can uses channels to make distribution of enterprise-specific PHP code easy.
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Tutorials |
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30 Jan 2007 |
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Explore Eclipse's OSGi console
Get acquainted with the hidden gem known as the OSGi (Equinox) console and find out how it can be added to an Eclipse developer's toolbox. And learn how to extend the console to further add to the toolbox.
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Articles |
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30 Jan 2007 |
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SSL secures VNC applications
SSL provides a novel mechanism for convenient, secure access of remote desktops with VNC and standard Web browsers.
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Articles |
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24 Jan 2007 |
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Make incoming e-mail play custom tunes
"You've got mail" is so 20th century. Use Perl and Sound eXchange (SoX) to play sound files on your Linux or Windows computer based on the content of incoming e-mail messages. Your system can compose and blend certain sounds to give you a heads-up on the who, what, and why of your in-box content.
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Articles |
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23 Jan 2007 |
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Build an Ajax application using Google Web Toolkit, Apache Derby, and Eclipse, Part 2: The reliable back end
In this second article in the series on using the Google Web Toolkit (GWT) to build Asynchronous JavaScript + XML (Ajax) applications, learn how to build the Apache Derby database for your Web application, and use it to drive the GWT. Part 1 of this
series introduced you to GWT and demonstrated how you can use it to create a rich-client front end
for a Web application. This time, you'll go behind the scenes and learn about setting up the
back end with your database and the code used to convert the data to a format that
GWT can use. By the end of this article, you'll be ready for the front end and back end
to talk to each other.
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Articles |
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23 Jan 2007 |
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Offload your multimedia content and bandwidth to Amazon using PHP
Save disk space and bandwidth, and increase the reliability of your site by using the Amazon Simple Storage Service (S3) remote storage service to host your media files. You'll also improve the reliability of your site as it serves the increasingly large multimedia files that are so popular in the Web 2.0 world.
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Articles |
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23 Jan 2007 |
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Mastering Ajax, Part 9: Using the Google Ajax Search API
Making asynchronous requests isn't just about talking to your own server-side programs. You can also communicate with public APIs like those from Google or Amazon, and add more functionality to your Web applications than just what your own scripts and server-side programs provide. In this article, Brett McLaughlin teaches you how to make and receive requests and responses from public APIs like those supplied by Google.
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23 Jan 2007 |
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Ajax and XML: Five cool Ajax widgets
With the Web 2.0 wave came a whole new emphasis on the user experience. Part of that experience is the development novel ways to interact with and present information to users. Often, these new interfaces are called widgets and use Asynchronous JavaScript + XML (Ajax) to communicate with the server. Discover five widgets that you can use to enhance the interactivity of your site.
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Articles |
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16 Jan 2007 |
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Use Apache Derby to develop Eclipse plug-ins
Get a demonstration on how to use resource indexing with the Apache Derby database to develop Eclipse plug-ins. The Derby database embedded in Eclipse allows you to create an SQL database on the client side with no security issues or network problems, such as an unstable connection or high latency. An SQL database and the JDBC API provide an easy way to store information and quickly search previously stored data.
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Articles |
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16 Jan 2007 |
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How to internationalize your PHP apps
Localizing an application can be planned, or it can happen as a rushed afterthought. Discover techniques and tools such as gettext, XML, XSLT, and design patterns that can help when retrofitting localization into a mature product or planning for localization up front.
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16 Jan 2007 |
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Create data set navigation with the Rico LiveGrid widget
With the Rico LiveGrid widget, easily add Ajax-style navigation to your Web applications in this article by software engineer Nikhil Parekh.
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Articles |
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16 Jan 2007 |
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Whistle while you work to run commands on your computer
Use Linux or Microsoft Windows, the open source sndpeek program, and a simple Perl script to read specific sequences of tonal events -- literally whistling, humming, or singing to your computer -- and run commands based on those tones. Give your computer a short low whistle to check your e-mail or unlock your your screensaver with the opening bars of Beethoven's Fifth Symphony. Whistle while you work for higher efficiency.
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Articles |
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09 Jan 2007 |
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U2 PDO Driver, Part 2: Write PHP applications to access U2 data
Learn how to write PHP applications using a PHP Data Objects driver. Part 1 of this series described how to write the PHP Data Objects driver for U2 using InterCall APIs.
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Articles |
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04 Jan 2007 |
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Virtual Linux
Virtualization means many things to many people. A big focus of
virtualization currently is server virtualization, or the hosting of multiple
independent operating systems on a single host computer. This article explores the
ideas behind virtualization and then discusses some of the many ways to implement
virtualization. We also look at some of the other virtualization technologies out
there, such as operating system virtualization on Linux.
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29 Dec 2006 |
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Introduction to Apache Maven 2
Modern software projects are no longer solely monolithic creations of single local project teams. With the increased availability of robust, enterprise-grade open source components, today's software projects require dynamic collaboration among project teams and often depend on a mix of globally created and maintained components. Now in its second generation, the Apache Maven build tool -- unlike legacy build tools created before the Internet-enabled era of global software development -- was designed from the ground up to take on these modern challenges. This tutorial gets you started with Maven 2.
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Tutorials |
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19 Dec 2006 |
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Real-world Apache Derby: Who needs Ajax, anyway?
Asynchronous JavaScript + XML (Ajax) is a dynamite technique for greatly enhancing the user experience on the Web. But it pays to remember that it's only necessary because of the distance between the information source and the browser. Shorten that distance, and much of the need for Ajax goes away. This tutorial -- the second in this series on Apache Derby database use -- offers an alternate technique, one that allows reuse across several different environments.
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Tutorials |
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19 Dec 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 12: Hosting and deploying
In this article investigate the issues surrounding deployment of a Drupal site using virtualization technologies. Discover why the team chose to use virtualization, what technologies were considered, and the setup of the final production environment.
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19 Dec 2006 |
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Build Ajax into your Web apps with Rails
Ruby on Rails provides an excellent platform for building Web applications. Discover how to use the built-in Asynchronous JavaScript(TM) + XML (Ajax) features of the platform to give your application the Web 2.0 rich user interface experience.
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19 Dec 2006 |
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Generate Flash movies on the fly with PHP
Rich Internet Applications is the new buzz-phrase for Web 2.0, and a key component of the substance behind Web 2.0 is Adobe Flash. Learn how to integrate Flash movies into your application and generate Flash movies dynamically using the Ming library.
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19 Dec 2006 |
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Host multiple SSL sites on a single network card with IP aliasing
The interest in using SSL and name-based virtual hosts together is on the increase. Some people will tell you that such a thing is impossible, but you can implement virtual hosts in Apache through IP-based virtual hosts. In this article, John Liao and Jim Miles show you how.
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Articles |
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19 Dec 2006 |
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Linux project publications: Kernel
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community in the area of kernels.
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Articles |
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14 Dec 2006 |
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Migrate Visual Studio C and C++ projects to Eclipse CDT
With most C/C++ projects on Windows developed with Microsoft Visual Studio, it is essential to study the migration of these projects to Eclipse, the open source IDE. This article provides a brief step-by-step procedure for migrating Microsoft Visual Studio C/C++ (MSVC) projects to Eclipse. It compares and contrasts the benefits of MSVC and Eclipse CDT.
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Articles |
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12 Dec 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Java database development with Apache Derby, Part 1
Climb aboard! This article begins your journey of writing Java applications that work with the Apache Derby database. Learn how to connect to an embedded Derby database by using a Derby embedded Java Database Connectivity (JDBC) driver. Plus find out about database metadata and how to properly handle SQL errors and warnings in your Java application that may be generated by Derby.
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12 Dec 2006 |
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Getting to know the Atom Publishing Protocol, Part 3: Introducing the Apache Abdera project
Earlier articles in this series provided an overview of the Atom Publishing Protocol and described the various ways it is being utilized in real world applications. This article begins to demonstrate how you can start to implement Atom-enabled applications using a new open-source project, called Abdera, currently under incubation at the Apache Software Foundation.
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12 Dec 2006 |
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Building a CDT-based editor, Part 5: Using the PDOM for code completion
This article, fifth in a five-part "Building a CDT-based editor" series, shows how the C/C++ Development Tooling (CDT) performs code completion. This is one of the CDT's most useful capabilities because it reduces the amount of code the user needs to type and remember. Also, it provides a complete example of how the CDT uses the Persisted Document Object Model (PDOM).
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12 Dec 2006 |
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Build an Ajax application using Google Web Toolkit, Apache Derby, and Eclipse, Part 1: The fancy front end
Google Web Toolkit (GWT) is a major step forward in the creation of dynamic JavaScript applications that run in users' Web browsers. Using GWT, developers can design the user interface (UI) and event model using familiar Java techniques while GWT does the hard work of making the code friendly for all the major browsers. Learn the basics of GWT in this first article in a series, including how GWT lets you create an Asynchronous JavaScript + XML (Ajax) application and still write your code in the Java language. Discover how to create and run a small sample GWT application -- a hot new Web 2.0 business called Slicr, which sells pizza online.
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Articles |
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05 Dec 2006 |
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Develop eRCP applications with Eclipse
This article shows how to use Eclipse to develop embedded Rich Client Platform (eRCP) applications. Detailed steps guide you through setup, development style, deployment, and debugging of an eRCP application programming cycle.
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05 Dec 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 11: Using taxonomies in Drupal
Follow along in this series of articles as the IBM Internet Technology Group designs, develops, and deploys an extranet Web site for a fictitious company, International Business Council (IBC), using a suite of freely available software. In this article, you learn to use the taxonomy system in Drupal to provide structure to your Web site. The structure can then be used to support navigation and organization of your content.
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Articles |
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05 Dec 2006 |
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Batch processing in PHP
What do you do when you have a feature in your Web application that takes longer than a second or two to finish? You need some type of offline processing solution. Check out several methods for offline servicing of long-running jobs in your PHP application.
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Articles |
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05 Dec 2006 |
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Data visualization tools for Linux
Applications for graphical visualization of data on Linux are varied, from simple 2-D plots to 3-D surfaces, scientific graphics programming, and graphical simulation. Luckily, there are many open source possibilities, including gnuplot, GNU Octave, Scilab, MayaVi, Maxima, OpenDX, and others. Each has its advantages and disadvantages and targets different applications. Explore a variety of open source graphical visualization tools to better decide which is best for your application. [This article has been updated to include coverage of OpenDX - Ed.]
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Articles |
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30 Nov 2006 |
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Java Web services: Digging into Axis2: AXIOM
The Apache Axis2 Web services framework builds on the new AXIOM XML document model for efficient SOAP message processing. Unlike conventional document models, AXIOM builds the document representation in memory only as it's being accessed. Learn why this on-demand construction is a great approach for SOAP processing, and how XOP/MTOM attachments, data binding, and performance fit into the picture.
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30 Nov 2006 |
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Improve LAMP security with Apache Proxy's directive (mod_proxy)
In this article, Nick Maynard outlines a method for you to improve the security of a LAMP setup by using Apache's mod_proxy module. This article is specific to Linux; however, you can also apply some of the principles to other operating systems.
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Articles |
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29 Nov 2006 |
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Meet the specs: WS-RT 1.0 operations, Part One
Meet the WS-ResourceTransfer 1.0 initial draft specification, a proposed open standard that extends certain operations by allowing fragments of XML code in a single resource to be addressed instead of having to affect the entire resource. This article provides a closer look at how the WS-ResourceTransfer 1.0 specification extends the Get operation.
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Articles |
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29 Nov 2006 |
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Discover the Ajax Toolkit Framework for Eclipse
The Ajax Toolkit Framework (ATF) is a core piece of the new Open Ajax initiative, which aims to increase accessibility to the powerful Web programming technique through the Eclipse Foundation. The ATF extends the Eclipse Web Tools Platform (WTP) by adding an Asynchronous JavaScript and XML (Ajax) development environment for a variety of open source Ajax tool kits, including Dojo, Zimbra, and Rico. This article includes a HelloWorld example in which you install and configure the ATF, then use Eclipse and Dojo to create a basic Web application.
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Articles |
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29 Nov 2006 |
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Creating a declarative security model for RCP applications
Thick client-based business applications require rigid security regulations where different classes of users receive a predetermined set of access rights. This article explains how to build a flexible security model for Rich-Client Platform (RCP) applications by leveraging features provided by the Eclipse platform.
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29 Nov 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 10: Features for an extranet Web site
Follow along in this series of articles as the IBM Internet Technology Group designs, develops, and deploys an extranet Web site for a fictitious company, International Business Council (IBC), using a suite of freely available software. In this installment, learn how to define an extranet to meet client requirements and explore implementation techniques to create an extranet Web site.
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Articles |
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21 Nov 2006 |
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Job scheduling with Quartz
Quartz is an open source project that offers an extensive set of job scheduling features. In this article, software engineer Michael Lipton and IT architect Soobaek Jang introduce the Quartz API, starting with a general overview of the framework and concluding with a series of code examples that illustrate its fundamental features. After reading this article and following the code examples, you should feel capable of incorporating the basic features of Quartz into any Java application.
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Articles |
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21 Nov 2006 |
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vi intro -- the cheat sheet method
This tutorial shows how to use vi, a powerful visual editor. Using an accelerated "cheat sheet" method, this tutorial aims to make you a proficient vi user without requiring a huge time commitment. You'll quickly learn how to move around, edit text, use insert mode, copy and paste text, and use important vim extensions like visual mode and multi-window editing.
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Tutorials |
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15 Nov 2006 |
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Using Apache Derby databases, Part 2: Manage IT services beyond mere deployment
Rolling out increasingly advanced software offerings and the demands of more technically savvy users exacerbate the problem of IT service provision. Simply deploying software, like Apache Derby databases, and hoping for resiliency is no longer sufficient. Management needs to be automated. In this article -- the second in a two-part series -- find out how IBM autonomic computing technology, particularly the IBM Autonomic Integrated Development Environment (AIDE) toolkit, may be an effective solution. Learn how you can use this technology with Apache Derby to create the basis of a converged provider environment.
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Articles |
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14 Nov 2006 |
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The GNU Linear Programming Kit, Part 3: Advanced problems and elegant solutions
The GNU Linear Programming Kit (GLPK) is a powerful, proven tool for solving
numeric problems with multiple constraints. This article, the third in a three-part
series uses GLPK and the glpsol client utility with the GNU MathProg language to
solve a perfume production problem and a basketball lineup problem.
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Articles |
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14 Nov 2006 |
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Build a Web spider on Linux
Web spiders are software agents that traverse the Internet gathering,
filtering, and potentially aggregating information for a user. Using common
scripting languages and their collection of Web modules, you can easily develop Web
spiders. This article shows you how to build spiders and scrapers for Linux to crawl
a Web site and gather information, stock data, in this case.
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Articles |
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14 Nov 2006 |
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Monitor your Linux computer with machine-generated music
Use Perl and FluidSynth to create a real-time musical composition of your system status. Learn how to integrate various system monitoring data into a harmony-producing, MIDI-controlled audio synthesis. Explore audible information methods and configurations to help you monitor and manage your computing environment.
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14 Nov 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 7
With this article you've reached an important point in mastering fundamental database concepts as they relate to the Apache Derby database. This article reviews how to modify an SQL query to group related rows together to provide summary statistics database information. Then it introduces the concept of a view, which can be used to simplify database application development by creating a virtual table that represents the results of an SQL query. Finally, you'll learn about database indexes, which you can use to locate specific table rows. After you've mastered these advanced database concepts, you'll be well positioned to begin developing Java database applications with Apache Derby.
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Articles |
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07 Nov 2006 |
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Shake some sense into your Linux ThinkPad
Place your computer on the leading edge of cathartic interfaces by modifying the kernel to reset your Linux laptop automatically when shaken during a kernel panic. Implement a shake-detection algorithm in the kernel and user space to perform automatic shutdowns and restarts when certain kinetic conditions are met.
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Articles |
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07 Nov 2006 |
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Mastering Ajax, Part 8: Using XML in requests and responses
In the last article of the series,you saw how your Ajax apps can format requests to a server in XML. You also saw why, in most cases, that isn't a good idea. This article focuses on something that often is a good idea: returning XML responses to a client.
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Articles |
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07 Nov 2006 |
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Using Apache Derby databases, Part 1: Managed objects in a converged provider environment
This two-part series addresses the importance of the automated management of Apache Derby databases using (as an example) IBM autonomic computing touchpoint technology and Web Services Distributed Management (WSDM). This article, Part 1, introduces the growing need for automated IT management, which is facilitated by the centralization and consolidation of applications, data centers, and front- and back-office functions. Discover how you can use Derby as a managed element, including working with the database's unified utilization and management requirements and how using FCAPS can help you design an IT management solution.
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Articles |
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31 Oct 2006 |
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What's hot in Eclipse V3.2 Callisto
Eclipse Callisto (V3.2) offers new and improved features over Eclipse V3.1.x and many IDEs available today. Developers who have been using Eclipse V3.1.x will find it easier to get Eclipse up and running to do a variety of tasks, including Java development, Web services development, XML and XSD building, and connecting to and working with databases. This article introduces the new features and improved usability, along with links to many resources on Callisto projects.
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Articles |
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31 Oct 2006 |
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Real Web 2.0: Bookmarks? Tagging? Delicious!
In this article, you'll learn how to work with del.icio.us, one of the classic Web 2.0 sites, using Web XML feeds and JSON, in Python and ECMAScript. When you think of Web 2.0 technology, you might think of the latest Ajax tricks, but that is just a small part of the picture. More fundamental concerns are open data, simple APIs, and features that encourage users to form social networks. These are also what make Web 2.0 a compelling problem for Web architects. This column will look more than skin deep at important real-world Web 2.0 sites and demonstrate how Web architects can incorporate the best from the Web into their own Web sites.
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26 Oct 2006 |
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Develop an application with Apache Derby, Apache MyFaces, and Facelets
Learn how to develop a JavaServer Faces (JSF) application using Apache Derby, Apache MyFaces, and Facelets. The ready-to-download sample application in this article uses a Model-View-Controller (MVC) architecture to illustrate the power of the MyFaces components and the ease of developing with Apache Derby and the latest view technology, Facelets.
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Articles |
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24 Oct 2006 |
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Charming Python: Hatch Python eggs with setuptools
David takes a look at the setuptools framework, a side project of the Python Enterprise Application Kit (PEAK). setuptools replaces the standard distutils library and adds versioned package and dependency management to Python. Perl users will be familiar with CPAN, and Ruby users with Gems; the tool ez_setup that bootstraps setuptools and the expanded easy_install that comes with it act in conjunction with "Cheeseshop" (the Python Package Index, also called "PyPI") to achieve the same thing. Moreover, setuptools lets you package your libraries in a single-file archive called an "egg," which is a lot like a Java JAR file, but for Python.
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Articles |
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24 Oct 2006 |
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Debugging make
Make utilities such as GNU make, System V make, and Berkeley make, are fundamental tools for streamlining the application build process, but each one is just a little different from the others. Learn the structure of the makefile and how to avoid common mistakes in its creation, discover how to fix or work around portability issues, and pick up hints for solving other problems as they crop up.
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Articles |
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24 Oct 2006 |
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Create a commercial-quality Eclipse IDE, Part 3: Fine-tune the UI
This tutorial -- the final installment in this "Create a commercial-quality Eclipse IDE" tutorial series about integrated development environment (IDE) design -- shows how to fine-tune the UI of your IDE. It shows how to use additional elements in Eclipse to enhance your editor as well as demonstrates the differences between commercial-quality and amateur IDEs.
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Tutorials |
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24 Oct 2006 |
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Building a CDT-based editor, Part 4: Advanced CDT parsing and the Persisted Document Object Model
This article, the fourth in a five-part "Building a CDT-based editor" series, introduces the second and more sophisticated of the parsers used by Eclipse's C/C++ Development Tooling (CDT). This new process structures its information in a Persisted Document Object Model (PDOM) and enables indexing, code completion, and content assist. If you intend to improve or extend the CDT for your own custom tool, understanding the PDOM and the new parsing is essential.
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Articles |
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24 Oct 2006 |
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Create a commercial-quality Eclipse IDE, Part 2: The user interface
This tutorial -- second in this "Create a commercial-quality Eclipse IDE" series -- shows how to create the UI of the IDE. It examines the editor user interface framework that Eclipse offers, as well as the SourceViewerConfiguration class and all the various classes related to it, used to implement and configure your IDE's UI.
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Tutorials |
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17 Oct 2006 |
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Port your code around the world with m17n
To make Linux applications usable worldwide, with no inequity between Western dialects and the rest of the world's many languages, you must be able to deliver localized versions that input, store, retrieve, and render any language, no matter how complex. The multilingualization library, or m17n, provides a single internationalization solution for all languages on UNIX-like platforms.
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Articles |
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17 Oct 2006 |
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Apache Derby resources from the Web services perspective, Part 2: Producing and consuming WS-Notifications with Derby
Continue on your mission to make your resources service-oriented architecture (SOA)-friendly. Part 1 of this three-part tutorial series showed you how to use WS-Resources to refer to Apache Derby data and structures from within the inherently stateless environment of Web services. Exposing a database entity through a Web service resource helps you easily provide state and database information through the standardized Web Services Resource Framework (WSRF). But how do you monitor the resource to check for changes? WS-Notification standard Web services. This installment, Part 2, walks you through producing and consuming Web services notifications with Apache Derby and teaches you about WS-Notification, which provides another standardized interface for the monitoring and examination of a Web service.
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17 Oct 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 9: Understanding the database layer
Follow along in this series of articles as the the IBM Internet Technology Group designs, develops, and deploys an extranet Web site for a fictitious company, International Business Council, using a suite of freely available software. In this installment, explore the Drupal database abstraction layer and learn how to use it effectively while developing a Web site. Discover best practices for module developers and details about using the Drupal database functions. You also learn to implement the necessary code to support a new database -- IBM DB2 Express-C.
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17 Oct 2006 |
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Understanding JFace data binding in Eclipse, Part 3: Exploiting advanced features
Almost all applications require synchronization of data between various objects and services. This tutorial, Part 3 of a series titled "Understanding JFace data binding in Eclipse," shows you how to use advanced features to accomplish this task while writing testable UIs.
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17 Oct 2006 |
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Building a CDT-based editor, Part 3: Basic CDT parsing
This article, third in a five-part "Building a CDT-based editor" series, introduces the parsing process used by the Eclipse C/C++ Development Tooling (CDT). Parsing is one of the CDT's most crucial functions, but because of its complexity, parsing is also one of its least-understood aspects. Many have asked if they can simply extract it for their own project, but here, we'll go further, explaining how the classes function and how this functionality fits in with the CDT as a whole.
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10 Oct 2006 |
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Seven great PHP IDEs compared
Discover what you should expect from an integrated development environment (IDE), and compare the cost and benefits of seven popular IDE choices.
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10 Oct 2006 |
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Mastering Ajax, Part 7: Using XML in requests and responses
Brett McLaughlin demonstrates how you can use XML as the data format for sending asynchronous requests.
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10 Oct 2006 |
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SimpleXML processing with PHP
Discover the SimpleXML extension, which is bundled with PHP version 5 and enables PHP
pages to query, search, modify, and republish XML in a PHP-friendly syntax.
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10 Oct 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 8: Styling content for theming using CSS
Learn methods for structuring the content of a new extranet Web site, including how to change the presentation and styling of the content delivered by Drupal.
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06 Oct 2006 |
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Apache Derby resources from the Web services perspective, Part 1: Derby data as WS-Resources
As the world moves in the direction of service-oriented architecture (SOA), it becomes crucial that all of your resources are SOA friendly. That may mean they produce services, that they consume services, or that they are services. This three-part tutorial series looks at Apache Derby from the perspective of making it Web services-aware. Web services are stateless, but most applications are not. This tutorial, Part 1, shows you how to use WS-Resources to refer to Derby data and structures from within the inherently stateless environment of Web services.
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03 Oct 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 7: Structuring content for theming using XHTML
Find out the team's approach for the development of a Web site, including key methods to structure the content delivered by Drupal.
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03 Oct 2006 |
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Understanding JFace data binding in Eclipse, Part 2: The basics of binding
Almost all applications require synchronization of data between various objects and services. However, moving String instances and writing event notification code can be tedious. Desktop application development is especially full of such tasks. The new JFace data binding application programming interface (API) included in Eclipse V3.2 looks to make this data synchronization process far easier. This "Understanding JFace data binding in Eclipse" series introduces basic and advanced uses of the JFace data binding API.
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03 Oct 2006 |
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Secure programming with the OpenSSL API, Part 3: Providing a secure service
Without secure server applications, the need for secure client applications is nonexistent. With OpenSSL, you can create secure server applications, and, although the documentation makes it look intimidating, it's really not difficult. Learn how to build a secure server app by building on the concepts covered in Part 1 of this series.
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27 Sep 2006 |
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Understanding JFace data binding in Eclipse, Part 1: The pros and cons of data binding
Large amounts of the development time for Java graphical user interface (GUI) applications involve simply moving data out of domain objects into GUI components and back again. In recent years, several data binding frameworks have stepped to the forefront to automate this data synchronization process. This article explains what a data binding framework does, introduces several popular Java GUI data binding frameworks, and covers the pros and cons of using data binding.
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26 Sep 2006 |
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Real-world Apache Derby, Part 1: Apache Derby and OpenOffice.org Calc
Apache Derby signals a sea change in both desktop and Web-based applications. For the first time, that elusive target for developers -- complete data portability -- is easily attainable. This tutorial, the first in a series, shows how you can use Derby as a data store to overcome row-length limitations in OpenOffice.org's Calc and use that program's interface for data analysis while leaving the storage to Derby.
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Tutorials |
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26 Sep 2006 |
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Implement news syndication using RSS and Atom
The advent of RSS and Atom technologies brings a bright new era of news syndication. It takes time, however, for Web site administrators to publish the news manually every day and to manage e-mail subscribers. This article shows how to implement a general news publication architecture using RSS and Atom syndication formats to ease the process and minimize human error.
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26 Sep 2006 |
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A PHP V5 migration guide
With the new language features of PHP V5, you can significantly improve your code's maintainability and stability. Learn how to migrate code developed in PHP V4 to V5 while taking advantage of these new features.
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26 Sep 2006 |
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Build cross-platform GUIs using wxWidgets
The wxWidgets toolkit contains powerful, cross-platform tools for graphical user interface (GUI) development. In addition to its native C++, several languages offer wrappers for use with the toolkit. Learn how to use the wxWidgets toolkit to create elegant and highly useful GUIs in your programming language of choice.
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21 Sep 2006 |
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Build cross-platform GUIs using wxWidgets
The wxWidgets toolkit contains powerful, cross-platform tools for graphical user interface (GUI) development. In addition to its native C++, several languages offer wrappers for use with the toolkit. Learn how to use the wxWidgets toolkit to create elegant and highly useful GUIs in your programming language of choice.
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21 Sep 2006 |
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LPI exam 102 prep, Topic 108: Linux documentation
In this tutorial, the fourth of a series of nine tutorials on LPI exam 102 topics, Ian Shields introduces you to Linux documentation. By the end of this tutorial, you will know how to use and manage local documentation, find documentation on the Internet, and use automated logon messages to notify users of system events.
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20 Sep 2006 |
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Building a CDT-based editor, Part 2: Presenting text in the CDT
This article, the second in a five-part "Building a CDT-based editor" series, introduces text presentation in the Eclipse C/C++ Development Tooling (CDT). Text presentation is an important advantage of the CDT. The clear, multicolored display makes it easy to read and navigate through code. Understanding how this works is crucial, whether you want to understand the CDT code or build a full-featured source editor of your own. Further, the mechanisms that make CDT text presentation possible are also needed for a more important capability: automatic parsing.
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19 Sep 2006 |
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Practically Groovy: Reduce code noise with Groovy
Groovy's concise syntax frees developers from typical Java constructs that are required for code compilation but don't facilitate expressing what a program is really trying to accomplish. In this revival of the Practically Groovy series, Groovy developer and guest columnist J. Scott Hickey walks you through a series of comparisons between normal Java code and the same Groovy code to show you how this exciting language frees you to focus on the important aspects of coding.
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19 Sep 2006 |
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Meet the specs: Intro to WS-ResourceTransfer 1.0
Meet the WS-ResourceTransfer 1.0 initial draft specification (WS-RT), a proposed open standard that extends certain operations by allowing fragments of XML code in a single resource to be addressed instead of having to affect the entire resource. This introduction provides an overview of the specification, examines its heritage, and starts climbing the learning curve by uncovering the definition of fragments and discovering the three expression dialects employed in WS-RT.
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19 Sep 2006 |
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Make Ruby on Rails easy with RadRails and Eclipse
RadRails is the Eclipse-based IDE for Ruby on Rails. Learn about installing RadRails, the structure and use of the application window, and the primary steps in developing an application.
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19 Sep 2006 |
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Building a CDT-based editor, Part 1: The C/C++ Development Tooling model
The Eclipse C/C++ Development Tooling (CDT) project remains one of the most popular Eclipse downloads available. But the integrated development environment's (IDE's) richness makes the code difficult to understand and customize, which is an important concern for organizations attempting to integrate the CDT into their applications. This five-part "Building a CDT-based editor" series explains how the CDT editor works, and Part 1 introduces the data structures on which the CDT operates.
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12 Sep 2006 |
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NFSv4 delivers seamless network access
Network File System (NFS) has been part of the world of free operating systems and proprietary UNIX flavors since the mid-1980s. But not all administrators know how it works or why there have been new releases. A knowledge of NFS is important simply because the system is vital for seamless access across UNIX networks. Learn how the latest release of NFS, NFSv4, has addressed many criticisms, particularly with regard to security problems, that became apparent in versions 2 and 3.
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12 Sep 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 6: Building a custom module in Drupal
Create a custom Drupal module for announcements on Web site, including implementation and code samples.
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12 Sep 2006 |
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Learn Eclipse GMF in 15 minutes
This article introduces the Graphical Modeling Framework (GMF) project, shows how to develop a simple Eclipse Modeling Framework (EMF) model, and transform it into a full-blown graphical editor using GMF's tooling.
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12 Sep 2006 |
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The GNU Linear Programming Kit, Part 2: Intermediate problems in linear programming
This article continues the series on using the GNU Linear Programming Kit and the glpsol client utility with the GNU MathProg language. In this installment, a diet problem shows you how to formulate a simple multi-variable and declare bidimensional parameters. A post office resource allocation problem then introduces MathProg expressions and integer-only decision variables.
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07 Sep 2006 |
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Merge XML and Java with XMLBeans in commerce
Learn how and why Service-Oriented Architectures (SOAs), XML, and XMLBeans can play an important role in addressing real business problems, using the entertainment industry as a case study. This article isn't about code; rather, you'll learn how and why to use XMLBeans in any situation requiring XML.
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05 Sep 2006 |
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Introducing The Open Group Architecture Framework (TOGAF), Part 3: Create an enterprise architecture with TOGAF
Discover how to use The Open Group Architecture Framework (TOGAF) and overcome potential obstacles you can encounter when building an enterprise architecture.
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05 Sep 2006 |
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Errors: errno in UNIX programs
Learn more than you ever wanted to know about the UNIX standard error reporting mechanism, the errno global variable. You'll also learn about a couple of associated global variables (sys_nerr and sys_errlist) and the standard functions that help you report errors to the user.
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05 Sep 2006 |
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Open source robotics toolkits
Building a robot involves skills from many disciplines, including embedded firmware and hardware design, sensor selection, controls systems design, and mechanical design. But simulation environments can provide a virtual arena for testing, measuring, and visualizing robotics algorithms without the high cost (and time) of development. This article introduces you to some of the open source robotics toolkits for Linux, demonstrates their capabilities, and helps you decide which is best for you.
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05 Sep 2006 |
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Create a commercial-quality Eclipse IDE, Part 1: The core
This "Create a commercial-quality Eclipse IDE" series examines how to create professional, commercial-quality IDEs that plug into Eclipse. In this tutorial, learn how to create the core of the IDE.
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Tutorials |
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05 Sep 2006 |
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Understanding the Zend Framework, Part 9: Adding interactivity with Ajax and JSON
Throughout this "Understanding the Zend Framework" series, we use the PHP Zend Framework to create the Chomp online feed reader, and now it's time to do one last tweak to improve usability. This article shows how to use Ajax to add information to a page without reloading the entire page, and how to use the Zend Framework to easily streamline those requests by translating data to and from the JavaScript Object Notation (JSON).
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05 Sep 2006 |
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PHP configuration patterns
This article demonstrates several ways to create configurable PHP applications. It also discusses the ideal configuration points in an application, and finding the balance point between an application that is too configurable and one that is too closed.
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29 Aug 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 5: Getting started with Drupal
In this article you are introduced to the Drupal programming model used in developing Web sites and gives you a description of different types of content. You also learn how to develop new features using modules, implementing hooks to enable those modules, and site URL design.
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29 Aug 2006 |
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Get a head start with JDBC 4.0 using Apache Derby
At the time of this writing, the Java Database Connectivity (JDBC) 4.0 specification is expected to be released from beta testing. It offers developers several enhancements to speed development and create a more object-oriented paradigm with regard to accessing and manipulating data stores. This specification relies heavily on existing technologies, such as Generics, the Metadata Facility, and JDBC RowSet. This tutorial demonstrates some of the new functions of the JDBC 4.0 specification in conjunction with the Apache Derby database.
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Tutorials |
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29 Aug 2006 |
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Understanding the Zend Framework, Part 8: Adding related information and services
In previous parts of this "Understanding the Zend Framework" series, we created the basic application, the Chomp online feed reader, using the open source PHP Zend Framework. This tutorial, the ninth and final part of the series, adds an extra dimension to our feed reader by linking the online resources of Amazon.com, Yahoo!, and Flickr with our current application to create a robust mashup.
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29 Aug 2006 |
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Understanding the Zend Framework, Part 7: Searching
Continuing this "Understanding the Zend Framework" series, where you last learned how to use the Zend Framework to send e-mail from within our feed reader application, now you'll use the Zend Framework to search the titles and content of articles saved via the feed reader application and view the resulting ranked results.
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22 Aug 2006 |
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LPI exam 102 prep, Topic 107: Printing
In this tutorial, the third of a series of nine tutorials on LPI exam 102 topics, Ian Shields introduces you to printing in Linux. By the end of this tutorial, you will know how to manage printers, print queues, and user print jobs on a Linux system.
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22 Aug 2006 |
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Eclipse Test & Performance Tools Platform, Part 3: Test applications
In this installment of the "Eclipse Test & Performance Tools Platform" tutorial series, learn how to use Eclipse Test & Performance Tools Platform (TPTP) testing features to measure the response time of your Web application. Then, discover how to create and manage improved JUnit tests and create computer-directed manual testing.
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Tutorials |
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22 Aug 2006 |
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Configureless J2EE development with Stripes, Apache Derby, and Eclipse
In the search for more portable and lightweight enterprise solutions,
Java 2 Platform, Enterprise Edition (J2EE) developers can leverage both Stripes and
Apache Derby for rapid, lightweight, J2EE development. Learn how to develop, package, and
deploy a simple Stripes application that performs Create, Retrieve, Update, and Delete (CRUD)
operations on a Derby database.
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22 Aug 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 6
Along with creating a database schema and populating tables with data, being able to selectively modify data is one of the most important skills necessary for a database developer. This article teaches you how to selectively delete or update data in an existing table and how to modify the structure of an existing table. To perform data modifications on a more complex database schema, you'll learn about embedded subqueries, both scalar and table, with data update and data insert operations. You'll also find out how to delete and modify data in complex schemas using the Apache Derby database.
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15 Aug 2006 |
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Meet the specs: SML models complex IT systems
Meet the Service Modeling Language specification, a proposed open standard that defines a modeling language complete with a set of constructs to help you model complex system hierarchies for components that manage such elements as configuration, monitoring, policy, health, capacity planning, and Service Level Agreements (SLA). One of the effects of SML is to increase the automation of management tasks, thereby reducing the need for a human to intervene in necessary adjustments. This article provides a quick look at the specification.
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15 Aug 2006 |
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Understanding the Zend Framework, Part 6: Sending e-mail
Earlier installments in this "Understanding the Zend Framework" series use the PHP Zend Framework to create the basic Chomp online feed reader. Now it's time to add e-mail to the mix. This article explains how to use the Zend_Mail component to send text and HTML e-mail alerts to users when new content has been added to subscribed feeds.
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15 Aug 2006 |
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Check your PHP code at every level with unit tests
Test-driven development and unit tests are the latest way to make sure your code is behaving as you expect through changes and refactoring. Find out how to unit test your PHP code at the module, database, and user interface (UI) level.
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15 Aug 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 4: Building your development environment in Linux
Install and configure in this tutorial all the software necessary to develop a Drupal-based Web site using Linux, including Eclipse, PHP, and more. When you're done, you will have a blank development canvas that you can use for any development project.
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Tutorials |
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11 Aug 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 3: Building your development environment in Windows
Install and configure in this tutorial all the software necessary to develop a Drupal-based Web site in Windows, including Eclipse, PHP, and more. When you're done, you will have a blank development canvas that you can use for any development project.
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Tutorials |
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11 Aug 2006 |
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Easy database queries with JSTL SQL actions
Author Meenakshi G. Khanna shows you how to use the JSTL 1.1 SQL tag library to incorporate database operations into your JSPs.
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10 Aug 2006 |
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Building cheat sheets in Eclipse V3.2
Cheat sheets, an important productivity tool for Eclipse users, have gotten even better with Eclipse V3.2. In this follow-up to his "Building cheat sheets in Eclipse" tutorial, IBM software engineer Philipp Tiedt outlines cheat sheets' new features and gives examples of how to use them.
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08 Aug 2006 |
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The GNU Linear Programming Kit, Part 1: Introduction to linear optimization
The GNU Linear Programming Kit is a powerful, proven tool for solving numeric problems with multiple constraints. This article introduces GLPK, the glpsol client utility, and the GNU MathProg language to solve the problem of optimizing the operations for Giapetto's Woodcarving, Inc., a fictional toy manufacturer.
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08 Aug 2006 |
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Seven simple reasons to use AppFuse
Getting started with open source tools for the Java platform such as Spring, Hibernate, or MySQL can be difficult. Throw in Ant or Maven, a little Ajax with DWR, and a Web framework -- say, JSF -- and you're up to your eyeballs just trying to configure your application. AppFuse removes the pain of integrating open source projects. It also makes testing a first-class citizen, allows you to generate your entire UI from database tables, and supports Web services with XFire. Furthermore, AppFuse's community is healthy and happy -- and one of the few places where users of different Web frameworks actually get along.
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Articles |
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08 Aug 2006 |
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Beef up Web search applications with Lucene
Lucene is a full-text information retrieval (IR) library written in the Java(TM) programming language. Now it's an open source project in the popular Apache Jakarta Project family. Discover how to implement advanced searching capabilities, and learn how to create a robust Web search application using Lucene.
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08 Aug 2006 |
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Create more -- better -- code in Eclipse with JET
The ability to create templates to codify best practices (that generate artifacts) is a powerful concept that can save you countless hours and reduce tedious coding. Get an introduction to the code generation framework, JET, which is an Eclipse technology project.
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08 Aug 2006 |
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Five common PHP database problems
Discover five common database problems that occur in PHP applications -- including database schema design, database access, and the business logic code that uses the database -- as well as their solutions.
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01 Aug 2006 |
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Understanding the Zend Framework, Part 5: Creating PDF files
In previous parts of this "Understanding the Zend Framework" series, we created the basic application, the Chomp online feed reader, using the open source PHP Zend Framework. In this tutorial, we use the Zend Framework's PDF capabilities to generate a PDF document based on entries the user has saved.
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01 Aug 2006 |
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Transform Eclipse navigation files to DITA navigation files
A previous article described the basics for transforming Eclipse navigation files to Darwin Information Typing Architecture (DITA) format. In August 2005, the OASIS DITA Toolkit 1.1 implemented a new way to integrate DITA navigation files. The new capability is called mapref and provides an alternative to using the navref element to integrate navigation files, as described in the previous article. This article compares the mapref and navref methods of integrating navigation files. You'll find the download archive for this article includes an updated XSLT stylesheet that exploits the mapref capability and offers other enhancements to the stylesheet from the earlier article.
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01 Aug 2006 |
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Better error handling using Flex and Bison
Although it is easy to generate programs using Flex and Bison, it is a bit harder to make those programs produce user-friendly syntax and semantic error messages. This article examines the error-handling features of Flex and Bison, shows how to use them, and details some pitfalls.
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28 Jul 2006 |
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PHP encryption for the common man
In this increasingly virtual online world, you have to be careful to protect your data. Learn the basics of encoding and encrypting important bits of information, such as passwords, credit card numbers, and even entire messages. Get an overview of what it means to encrypt and decrypt information, as well as some practical examples involving passwords and other data, using PHP's built-in functionality.
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25 Jul 2006 |
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Knock-based commands for your Linux laptop
For the first time, you can hit your computer and get a meaningful response! Using Linux and the Hard Drive Active Protection System (HDAPS) kernel drivers, you can access the embedded accelerometers on Lenovo (formerly IBM) ThinkPads, then process the accelerometer data to read specific sequences of "knocking" events -- literally rapping on the laptop case with your knuckles -- and run commands based on those knocks. Double tap to lock the screen, and knock in your secret code to unlock. Tap the display lid once to move your mp3 player to the next track. The possibilities are endless.
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25 Jul 2006 |
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Understanding the Zend Framework, Part 4: When there is no feed, the Zend_HTTP_Client
This "Understanding the Zend Framework" series chronicles the building
of an online feed reader, Chomp, while explaining the major aspects of using
the recently introduced open source PHP Zend Framework. Part 3 explains how to
use the Zend Framework to construct our online feed reader, Chomp, by creating
an interface to subscribe to and read feeds, and to save feed entries into the
database. Now you will learn how to use the Zend Framework to incorporate Web
sites that do not support RSS feeds into the online feed-reader interface.
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25 Jul 2006 |
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Five common PHP design patterns
Design patterns are just for Java architects -- at least that's what you may
have been led to believe. In fact, design patterns are useful for everyone. If these
tools aren't exclusive to architecture astronauts, what are they, and why are they useful in PHP applications? This article explains.
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18 Jul 2006 |
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Understanding the Zend Framework, Part 3: The feeds
This "Understanding the Zend Framework" series chronicles the building
of an online feed reader, Chomp, while explaining the major aspects of using
the recently introduced open source PHP Zend Framework. In parts 1 and 2, we
discuss the goals behind the Zend Framework and show you how to use it to
create the beginnings of our online feed reader, creating a form and adding
information to a database while getting to know the MVC pattern. In this
tutorial, you will see how to use the Zend Framework to implement the online
feed reader portion of the application.
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Tutorials |
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18 Jul 2006 |
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Back to basics: Scripting Apache Derby's ij tool
Everybody's building Web applications these days. But what if you just want a little bit of data? Do you really need to go to the trouble of creating a whole application? Doesn't Derby provide a tool for that? Well, of course it does. Derby's main command line tool, ij, is designed for just that: manipulating and retrieving the data in the database from the command line. But ij is more than just a place to enter select statements. It provides a fairly comprehensive suite of tools and commands, such as the use and manipulation of cursors. This article explains the use of ij's advanced scripting capabilities. You may never go back to a Web application again.
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18 Jul 2006 |
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Practical business graphing with SVG and XML
Learn to build business graphs using XML, PHP and the Scalable Vector Graphics (SVG) standard. The SVG standard gives your graphics infinite vector scalability, visual effects, and even scripted interactivity.
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Articles |
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18 Jul 2006 |
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Get free stuff for Web design
Web developers can find many free resources, although some are freer than others. If you design a Web site or Web application, whether static or with all the dynamic Ajax goodness you can conjure up, you might find resources to lighten your load and spice up your content. From free icons to Web layouts and templates to on-line Web page tools, this article demonstrates that a Web architect can also get help these days at little or no cost.
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13 Jul 2006 |
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Separate data and formatting with microformats
Microformats are a new way to embed structured data within standard XHTML code. Discover how to read and write the new microformats for the Web.
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Articles |
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11 Jul 2006 |
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Configuring and troubleshooting Tomcat 3.2.4 on IBM System i5/OS
The Tomcat application server is a lightweight, easy-to-use, open source alternative to commercial products. Learn how it to use it with IBM System i5 computers.
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11 Jul 2006 |
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Python Web frameworks, Part 2: Web development with TurboGears and Python
In this second article of a two-part series, we demonstrate TurboGears, another open source MVC-style Web application framework based on Python. Where the first article was an introduction to the Django framework, this one shows how to use TurboGears to create a Web-based shopping application and concludes with a comparison between Turbogears and Django.
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11 Jul 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 2: Design for an effective user experience
Explore the IBM Internet Technology Group's design process for a closed community Web site, which can help you to create user experiences for applications, other interfaces, or Web sites.
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11 Jul 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 5
The SQL SELECT statement lets you perform queries against an Apache Derby database to select data from multiple tables where certain conditions are valid. This article builds on previous articles in this series to develop even more powerful SELECT statements. Learn how to use the ORDER BY clause and DISTINCT keywords to modify the rows of data selected by a query; how to include basic mathematical operators in a query; and how to work with the primary built-in SQL functions to convert data from one data type to another, to compute aggregate quantities, to perform mathematical operations, to work with date and time data, and to work with character strings.
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11 Jul 2006 |
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Using open source software to design, develop, and deploy a collaborative Web site, Part 1: Introduction and overview
In this series, follow along as the IBM Internet Technology Group team designs, develops, and deploys a closed community Web site using a suite of software that is freely available -- including Drupal, MySQL, PHP, Apache, and Eclipse technologies.
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11 Jul 2006 |
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Understanding the Zend Framework, Part 2: Model-View-Controller and adding a database
In Part 1 of this "Understanding the Zend Framework" series, we discuss the goals behind the Zend Framework, including easy-to-use components and an architecture based on the Model-View-Controller (MVC) pattern. Now we start to actually put that to use. In this tutorial, you will see how to use the Zend Framework to create the beginnings of our online feed reader, Chomp, creating a form and adding information to a database while getting to know the MVC pattern.
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Tutorials |
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11 Jul 2006 |
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How to use Subversion with Eclipse
From the beginning, Eclipse included tight integration with the Concurrent Versions System (CVS) in order to provide access to change-management capabilities. Now, many projects -- notably those run by the Apache Software Foundation -- are using a different change-management system: Subversion. Find out how to use Eclipse for projects that use a Subversion repository.
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Articles |
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11 Jul 2006 |
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Create mosaic movies with Perl, ImageMagick, and MPlayer
Use Perl, ImageMagick, and MPlayer to create mosaic movies composed of frames from other movies. Zoom out from the center of a large text-overlay image made up of sequential frames of existing movies. Disassemble, composite, and encode your own mosaic-type movies for special promotional or home video events.
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Articles |
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11 Jul 2006 |
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Manage source code using Git
Git is the open source revision control software that Linus Torvalds developed to help manage Linux kernel development. You can download it yourself and use it for your own kernel hacking -- or for software development projects of your own. This article shows you how to get started hacking Linux with the Git tools. [Update: Two code listings have been modified to reflect the replacement of the rsync protocol with the newer git protocol for fetching source code -- Ed.]
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Articles |
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06 Jul 2006 |
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System Administration Toolkit: Migrating and moving UNIX filesystems
Learn how to transfer an entire file system on a live system, including how to create, copy, and re-enable the new file system. If you have a UNIX(R) disk or system failure or simply fill up your file system, then you need to create a new partition and file system and copy over the contents. You might even need to mount the new partition in place to preserve the location of vital files and components. To add further complications, you need to do this on a live system, where you'd need to preserve file permissions, ownership, and possibly named pipes and other components. Effectively transferring these components and retaining all of this information is a vital part of the migration process.
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Articles |
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03 Jul 2006 |
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LPI exam 202 prep, Topic 214: Network troubleshooting
In this tutorial, the last of a series of seven tutorials covering intermediate network administration on Linux, David Mertz finishes preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 202. This tutorial revisits earlier tutorials in the series, focusing on how to use the basic tools you've already covered to fix networking problems. The tool review is divided into two categories: configuration tools and diagnostic tools.
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Tutorials |
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28 Jun 2006 |
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Understanding the Zend Framework, Part 1: The basics
We programmers are a paradoxically lazy lot. By that, I mean that we
will spend hours, even days, creating something that allows us to complete a
task in 30 seconds instead of five minutes. So perhaps the creation of the Zend
Framework isn't much of a surprise. You mean you haven't heard of the Zend
Framework? Don't worry -- you will. This article gives you a high-level view of the Zend Framework, explaining its general concepts and preparing you for the rest of this "Understanding the Zend Framework" series, which goes into the details by chronicling the creation of a new online RSS/Atom feed reader. We won't do much coding in this article, but for the rest of the series, you should be familiar with PHP.
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Articles |
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27 Jun 2006 |
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Integrated Development Environment: C/C++ development with the Eclipse Platform
Learn how to use the C/C++ Development Toolkit (CDT), the best integrated
development environment C/C++ toolkit available for Eclipse. And get an overview
of how to use the Eclipse Platform, an integrated development environment for C and
C++ development projects.
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Articles |
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27 Jun 2006 |
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Delve inside the Lucene indexing mechanism
Discover Lucene, a full-text information retrieval (IR) library written in the Java(TM) language. You can embed Lucene easily into your applications and implement indexing and searching functionality. Now it's an open source project in the popular Apache Jakarta Project family. Learn about Lucene's indexing mechanism, as well as its index file structure.
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Articles |
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27 Jun 2006 |
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Apply Schematron constraints to XForms documents automatically
Learn how to use Schematron to apply constraints to a standards-compliant form above and beyond those provided by XML Schema. The freely available XML Forms Generator allows you to do this automatically as it generates an XForms document.
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Articles |
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27 Jun 2006 |
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Create an Eclipse-based application using the Graphical Editing Framework
This article describes the initial steps involved in creating an Eclipse-based application using the Graphical Editing Framework (GEF). GEF has been used to build a variety of applications for Eclipse, including state diagrams, activity diagrams, class diagrams, GUI builders for AWT, Swing and SWT, and process flow editors. Eclipse and GEF are both open source technologies. They are also included in IBM's WebSphere Studio Workbench.
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Articles |
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27 Jun 2006 |
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Ajax for Java developers: Exploring the Google Web Toolkit
The recently released Google Web Toolkit (GWT) is a comprehensive set of APIs and tools that lets you create dynamic Web applications almost entirely in Java code. Philip McCarthy returns to his popular Ajax for Java developers series to show you what GWT can do and help you decide whether it's right for you.
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Articles |
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27 Jun 2006 |
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Developing your first Eclipse RCP application
The objective of the Eclipse Rich Client Platform (RCP) is to enable Eclipse to be used in a wide range of end-user applications that are not integrated development environments (IDEs). With the release of Eclipse V3.1, it is easy to create RCP applications. This tutorial will guide you step by step in building your very own RCP application.
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Tutorials |
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27 Jun 2006 |
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Using Eclipse as a development environment with Jakarta Tomcat
Using Eclipse as a development environment for Java technology is great. Using an Eclipse Tomcat plug-in can help to better organize and integrate your Java and Web development projects. This article will guide you step by step through the installation of Eclipse, Jakarta Tomcat, and an Eclipse Tomcat launcher plug-in that will integrate them.
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Articles |
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26 Jun 2006 |
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Develop applications using Python and DB2 Express-C
Python is an incredibly powerful, general purpose, high-level, object-oriented, dynamically-typed programming language that is easy to read and understand, and fun to write. To make it really exciting, all we need do is to be able to connect it to an equally powerful, and attractively priced version of the IBM DB2 core engine. DB2 Express-C is a no-charge data server for use in development and deployment, that allows us to do this. This article provides step-by-step instructions for obtaining, installing, and configuring all that you need in order to use Python to connect to, and start using a DB2 Express-C instance.
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Articles |
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22 Jun 2006 |
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Recommended Eclipse reading list
Learn about Eclipse with this reading list compiled for developers by Eclipse developers and enthusiasts at IBM.
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Articles |
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20 Jun 2006 |
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Exposing an Apache Derby stored procedure as a Web service
Because of its small footprint, we often think of Apache Derby in terms of an embedded database. But what about in distributed environments, such as Web services or service-oriented architectures (SOAs)? Walk through this tutorial to find out how to build a Derby stored procedure, expose it as a Web service, and access that service.
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Tutorials |
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20 Jun 2006 |
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Turn your Eclipse task list into an RSS feed
Syndication is all the rage, whether it uses RSS or Atom. This tutorial shows how to create the FeedMaker plug-in, which takes the information in the Eclipse IDE's task list and turns it into a public feed. This way, team members can subscribe to a live feed that tells them what still needs to be done for a project.
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Tutorials |
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20 Jun 2006 |
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Compiling Hamlets
Rene Pawlitzek continues to advance the Hamlets framework, which extends Java servlets and enforces the separation of content and presentation. In this article, he proposes a new refinement: a method of compiling Hamlet templates that can improve application performance.
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Articles |
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20 Jun 2006 |
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Book review: Innovation Happens Elsewhere
from The Rational Edge: A favorable review of a guide to open source software, including the nuts and bolts of using open source software and building open source communities.
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Articles |
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15 Jun 2006 |
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Testing object serialization
Even great developers sometimes forget to test object
serialization, but that doesn't excuse you from making the same mistake.
In this article, Elliotte Rusty Harold explains the importance of unit testing
object serialization and leaves you with some tests to remember.
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Articles |
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13 Jun 2006 |
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Weave parallel applications with the Eclipse Parallel Tools Platform
Parallel programming environments used to be unfriendly. However, with a growing parallel computing community, high-performance and parallel computing is getting more and more support, especially with multicore and multichip servers becoming more widespread. Thus, a good parallel platform is a necessity. The Eclipse Parallel Tools Platform (PTP) accomplishes this by incorporating parallel development tools into the Eclipse UI framework, complete with a parallel debugger.
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Tutorials |
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13 Jun 2006 |
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Craft a Webmail interface for PHP applications
You know how to get users to interact with a PHP application using a Web form, but sometimes e-mail is just more convenient. Maybe your users are using small devices like cell phones or interacting in a way that's not real time, such as subscribing to an e-mail list. Find out how to read and send e-mail by building a PHP Webmail application.
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Tutorials |
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13 Jun 2006 |
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Develop forms using the Visual XForms Designer
Embark on a whirlwind tour of the Visual XForms Designer, a new tool freely available on IBM alphaWorks. Discover how the designer helps with all the major phases of form development with the XForms standard.
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Articles |
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13 Jun 2006 |
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LPI exam 202 prep, Topic 212: System security
In this tutorial, the sixth of seven tutorials covering intermediate network administration on Linux, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 202. By necessity, this tutorial touches briefly on a wide array of Linux-related topics from a security-conscious network server perspective, including general issues of routing, firewalls, and NAT translation and the relevant tools. It addresses setting security policies for FTP and SSH; reviews general access control with tcpd, hosts.allow, and friends; and presents some basic security monitoring tools and shows where to find security resources.
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Tutorials |
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13 Jun 2006 |
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Craft a Webmail interface for PHP applications
You know how to get users to interact with a PHP application using a Web form, but sometimes e-mail is just more convenient. Maybe your users are using small devices like cell phones or interacting in a way that's not real time, such as subscribing to an e-mail list. Find out how to read and send e-mail by building a PHP Webmail application.
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Tutorial |
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13 Jun 2006 |
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Developing PHP the Ajax way, Part 2: Back, Forward, Reload
A major challenge of Asynchronous JavaScript and XML (Ajax)-driven Web sites is the lack of a Back button. We will use JavaScript to create a history stack for the Ajax photo gallery built in Part 1 of this two-part "Developing PHP the Ajax way" series. This history stack will closely mirror the history utility found in Web browsers, and it will be used to provide Back, Forward, and Reload buttons for the application.
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Articles |
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06 Jun 2006 |
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The Ajax transport method
Discover three Ajax data transport mechanisms (XMLHttp, script tags, and frames or iframes) and their relative strengths and weaknesses. This tutorial provides code for both the server side and the client side and explains it in detail to provide the techniques you need to put efficient Ajax controls anywhere you need them.
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Tutorials |
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06 Jun 2006 |
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Discover Internet Protocol, version 6 (IPv6)
The next-generation protocol, Internet Protocol version 6 (IPv6), is the future of the Internet. Learn how IPv6 compares to Internet Protocol version 4 (IPv4), understand the version 6 address formats, discover the benefits of IPv6, and learn which IT products comply with this new standard.
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Articles |
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06 Jun 2006 |
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Understanding how Eclipse plug-ins work with OSGi
The core of the Eclipse integrated development environment (IDE) and Eclipse Rich Client Platform (RCP) applications is driven by an implementation of the Open Services Gateway Initiative (OSGi) specification. This article illustrates Eclipse's relationship with OSGi by describing what a plug-in is in terms of the Eclipse platform and traces the evolution of plug-ins from Eclipse V2.1 through today's OSGi-based implementation. It also explains the OSGi manifest.mf file options, along with the additions provided through Eclipse.
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Articles |
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06 Jun 2006 |
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Python Web frameworks, Part 1: Develop for the Web with Django and Python
In this first article of a two-part series, we show off Django, an open-source model-view-controller (MVC)-style Web application framework powered by the Python programming language. With Django, you can create high-quality, easy-to-maintain, database-driven Web applications in minutes.
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Articles |
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06 Jun 2006 |
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Introducing Subversion
Elliotte Rusty Harold introduces Subversion, an open
source, multiuser version control system that supports non-ASCII text
and binary data. Follow along as Elliotte shows you how to configure
Subversion support in Eclipse (via the Subclipse plug-in), check out a
project, synchronize with your repository, and then run common operations
such as merge, patch, diff, and delete.
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Articles |
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06 Jun 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 4
The Apache Derby software provides a powerful, open source database that can be used as a persistent store for a wide range of database applications. One of the main reasons for this popularity is Apache Derby's query support, which lets you selectively extract columns from specific rows across one or more tables that satisfy some Boolean condition. Learn about Apache Derby's query capabilities and how to use the SELECT statement to perform complex queries.
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Articles |
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06 Jun 2006 |
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Web services integration patterns for Java applications using open source frameworks, Part 2: Implementing receive patterns
Integrate the solicit-response and notification Web service client endpoint patterns with an application. Learn how the application acts as a Web service and is deployed on the Web server. And see how the external participant invokes the application as a Web service.
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Articles |
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02 Jun 2006 |
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Developing PHP the Ajax way, Part 1: Getting started
Asynchronous JavaScript and XML (Ajax), is arguably the most popular new Web technology. In this two-part "Developing PHP the Ajax way" series, you will create a simple photo album as an online Web application, entirely in PHP and the Simple Ajax Toolkit (Sajax). You'll begin by writing a simple photo album using the standard method of PHP development and later apply Sajax to make it an active Web application.
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Articles |
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30 May 2006 |
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What to plug into Eclipse
Throughout the Java developer community, Eclipse is best known for its industry-leading Java Development Tools (JDT). But Eclipse was built to encourage the use of plug-ins, and in that respect, it is wildly successful. Find out about some of the capabilities that have been built into Eclipse plug-ins, such as the ability to program in other languages like Ruby or to build interactive multimedia with environments such as OpenLaszlo.
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Articles |
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30 May 2006 |
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Centralize user accounts with OpenLDAP
Building a centralized authentication system using Lightweight Directory Access Protocol (LDAP) promises to reduce administration costs, increase security, avoid data replication, and increase data consistency. As Linux has matured, better tools have emerged to ease the migration of user account information into an LDAP directory. Tools have also been developed to enable the configuration of encrypted communication between a client and the directory server and to provide fault tolerance through replication. This article shows you how to configure a server and client to use OpenLDAP on Red Hat Linux.
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Articles |
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30 May 2006 |
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Get started with an open source CMS, Part 7: Enable WebDAV on an open source PHP content management system
In this tutorial, the last in a seven-part series, you'll use the PHP Web-based Authoring and Versioning (WebDAV) client you built in Part 5 to enable WebDAV on an open source content management system (CMS) application called PHP Web
Content Management System (PHPWCMS). The result lets you edit content through WebDAV so you can use WebDAV-enabled applications to access versioned files.
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Tutorials |
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30 May 2006 |
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LPI exam 202 prep, Topic 210: Network client management
In this tutorial, the fifth in a series of seven tutorials covering intermediate network administration on Linux, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 210. Here, David Mertz examine several protocols' centralized configuration of network settings on clients within a network. This tutorial also discusses PAM, which is a flexible, networked, user authentication system.
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Tutorials |
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24 May 2006 |
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Build a Web service with PHP
In the past few years, new Web services have been popping up all over the Internet. And what better language to build your own Web service in than PHP? With PHP, you have the advantage of a great scripting language with the power to connect to databases, an easy development curve that allows for faster development, and high response times -- thanks to the underlying libraries compiled for performance.
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Tutorials |
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23 May 2006 |
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Locking down your PHP applications
You know security is important, but the tendency is to put off adding security until the last minute. It's impossible to secure a Web application completely -- so why bother, right? Wrong. You can take some easy steps to make your PHP Web application orders of magnitude more secure.
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Tutorials |
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23 May 2006 |
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Linux project publications: Systems management
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community in the area of systems management.
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Articles |
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18 May 2006 |
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Linux project publications: Linux on POWER
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community in the area of Linux on POWER.
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Articles |
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18 May 2006 |
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All Hail Shale: Anatomy of a Shale application
Brett McLaughlin continues his introduction to Shale with an in-depth look at the framework's application directory structure. Using the Shale starter application introduced in the first article in this series, Brett walks you through the core directories, from src/ to dist/. He shows you how Shale stores its libraries, where custom files go, and where you can insert specialized behaviors into your Shale applications. Along the way, he gives you some important tips about managing the Shale directories and gets you started with an example application (based on the Shale starter application) that serves as the basis of his discussion for the remainder of the series.
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Articles |
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12 May 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 3
Learn how to create a self-documenting SQL command file, which you can execute as often as necessary, by placing SQL commands in a text file along with useful comments. After introducing the basic principles of a SQL script file, this article presents three ways to execute a script file. Then you'll review the fundamentals of inserting data into a table using the SQL INSERT statement, including seeing examples that insert ten new rows in different ways. Finally, the article presents a script that automates this INSERT operation and displays the newly inserted data for validation.
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Articles |
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12 May 2006 |
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Developing rich Internet applications with Rails, OpenLaszlo, and Eclipse
Explore at a high level how to develop a rich Internet application using OpenLaszlo, Ruby on Rails, MySQL, and Eclipse to provide a common IDE to not only develop your application but also to automate many of the steps in developing a Rails or OpenLaszlo application. This will further speed up and streamline the already fast development cycle of Rails applications.
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Tutorials |
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12 May 2006 |
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Streamline working with XML in PHP using Service Data Objects
Most PHP programmers will know that much of the function they use resides in PHP extensions, which usually either come packaged with their PHP distribution or can be downloaded from the PECL site. One such extension supports Service Data Objects (SDO) for PHP, which in February moved from a beta-level 0.9.0 release to a stable 1.0. Written by some of the original developers of the SDO extension, this article is aimed at the PHP programmer who wants to understand what SDO for PHP is, how it can be used, and how it can streamline working with XML.
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Articles |
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12 May 2006 |
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SELinux from scratch
SELinux, the U.S. National Security Agency's implementation of mandatory access control, is the most prominent new security subsystem in Linux. SELinux comes installed by default in Fedora and Red Hat Enterprise Linux and is available in easy-to-install packages in other distributions. This article shows you how to convert a non-SELinux system by hand in order to expose details about how SELinux is integrated into a system.
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Articles |
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11 May 2006 |
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Two tools bring Ajax to Eclipse's Ajax Toolkit Framework
IBM's contribution to the launch of the new Open Ajax Initiative aims to increase accessibility to the powerful Web programming technique through the Eclipse Foundation. To help prepare developers for the new tool set, this article introduces two existing runtime tools -- Dojo and Zimbra -- which will be supported in Eclipse's Ajax Toolkit Framework (ATF).
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Articles |
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09 May 2006 |
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Devise Web 2.0 applications with PHP and DHTML, Part 2: Use JavaScript to create HTML elements on the fly
Part 1 of this "Devise Web 2.0 applications with PHP and DHTML" series discusses how to build PHP applications with user interface elements like tabs, spinners, and pop-ups using JavaScript, Cascading Style Sheets (CSS), and HTML. Part 2 extends the lesson to include graphing techniques that use JavaScript to create new HTML elements on the fly.
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Articles |
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09 May 2006 |
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Install and use Eclipse for Linux on POWER
Eclipse is an open source community that provides a development platform and a collection of application frameworks for building software. Learn how to install and use Eclipse specifically for Linux running on IBM POWER processor-based systems. Learn, also, how to use Eclipse to compile and run applications through sample Java and C programs.
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Articles |
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05 May 2006 |
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Linux project publications: Software development
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community in the area of software development.
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Articles |
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04 May 2006 |
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Linux project publications: File systems and storage
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community in the area of filesystems and storage.
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Articles |
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04 May 2006 |
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Linux project publications: Standards
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community in the area of standards.
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Articles |
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04 May 2006 |
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Storing Java objects in Apache Directory Server, Part 1
This two-part article walks you through all the steps of storing Java objects in Apache Directory Server (ApacheDS). In this first half, author Bilal Siddiqui introduces you to ApacheDS and provides an overview of its core architecture. Because you primarily use ApacheDS as an LDAP server for storing Java objects, Bilal offers a quick overview of LDAP concepts and terminology. He also shows you how to use JXplorer to view LDAP schema components, such as attribute types and object classes, and how to enter a data object in ApacheDS. The article wraps up with an overview of Java object serialization and Remote Method Invocation as they apply to storing Java objects in ApacheDS, in preparation for the more hands-on approach in Part 2.
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Articles |
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02 May 2006 |
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Get started with an open source CMS, Part 6: Build a Python WebDAV client for Jakarta Slide
Want to learn how to build Python applications? In this tutorial -- the sixth in the series -- you'll create a Python Web-based Distributed Authoring and Versioning (WebDAV) client for Jakarta Slide that, in turn, lets you build Python applications for content management. Upon completion, you'll be able to access the Slide or any other WebDAV server from your Python applications. From there, you can start thinking about what else you can use the Python davclientlib for, which can grow to meet your future needs.
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Tutorials |
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02 May 2006 |
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Create an Eclipse game plug-in, Part 4: Packaging, testing, and putting final touches
Although most users think of Eclipse as an integrated development environment for building Java technology applications, it is really something much more basic. Eclipse is a framework for building plug-ins, allowing you to extend its functionality to solve nearly any problem -- just by leveraging a set of APIs and readily available libraries. In this four-part "Create an Eclipse game plug-in" tutorial series, you will solve a pressing problem most programmers encounter daily: how to break away to play a quick video game without switching applications and making it obvious. You'll develop a simple game that will read the bugs entered on the a view and blast them to bits. The game will run inside Eclipse as a plug-in, that will demonstrate how to write to the Eclipse API, while using the Standard Widget Toolkit, the Open Graphics Library, and the Lightweight Java Games Library. Part 4 demonstrates how to build and test the plug-in using an automated process, and finally, package it for distribution.
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Tutorials |
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02 May 2006 |
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Storing Java objects in Apache Directory Server, Part 2
In this second half of his introduction to storing Java objects in Apache Directory Server (ApacheDS), Bilal Siddiqui presents nine
example applications to demonstrate the concepts you learned in Part 1. In addition to walking you through all the steps to store, search, retrieve, and modify Java objects using ApacheDS, Bilal concludes the article with a reusable Java class that combines these functions using LDAP schema components in ApacheDS.
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Articles |
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02 May 2006 |
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Devise Web 2.0 applications with PHP and DHTML, Part 1: Cook up your own with these recipes
The buzzword of 2006 is Web 2.0. What that means is hotly debated, but it appears to refer to cool dynamic Web applications. Those Web applications -- often developed in PHP -- use dynamic HTML (DHTML) to create pages that move and change without having to go back to the server for a refresh. Author Jack Herrington explains how to get started in this "Devise Web 2.0 applications with PHP and DHTML" series.
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Articles |
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02 May 2006 |
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Embeddable scripting with Lua
Compiled programming languages and scripting languages each have unique advantages, but what if you could use both to create rich applications? Lua is an embeddable scripting language that is small, fast, and very powerful. Before you create yet another configuration file or resource format (and yet another parser to accompany it), try Lua.
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Articles |
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28 Apr 2006 |
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Software security analysis with BogoSec
BogoSec is a source code metric tool that wraps multiple source code scanners, invokes them on its target code, and produces a final score that approximates the security quality of the code. This article discusses the BogoSec methodology and implementation, and illustrates the output of BogoSec when run on a number of test cases, including Apache Web server, OpenSSH, Sendmail, Perl, and others.
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Articles |
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28 Apr 2006 |
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Eclipse Test & Performance Tools Platform, Part 2: Monitor applications
In this "Eclipse Test & Performance Tools Platform" tutorial series, learn how to use the capabilities of the Eclipse Test a& Performance Tools Platform (TPTP) to convert application log files into a structured format. Then, using TPTP and other specialized tools designed to process and analyze log files, you can quickly discern usage patterns, performance profiles, and errors.
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Tutorials |
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25 Apr 2006 |
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LPI exam 202 prep, Topic 208: Web services
In this tutorial, the fourth in a series of seven tutorials covering intermediate network administration on Linux, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 208. Here, David Mertz discusses how to configure and run the Apache HTTP server and the Squid proxy server.
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Tutorials |
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25 Apr 2006 |
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Use Apache Derby in your OpenLaszlo applications, Part 2: Storing and embedding data
Since OpenLaszlo's open source announcement, many developers have been using OpenLaszlo to create user-friendly rich Internet applications. Many of these applications require a database solution to have dynamic data fed to them. Because OpenLaszlo runs on Apache Tomcat by default, which supports JavaServer Pages (JSP) and servlets (Java), Apache Derby is an excellent database to use because it can be embedded in such applications and because Derby is written in pure Java code. In this tutorial, you'll build a management interface to the online shopping console created in Part 1. You'll also allow orders to be written to the database and enable management to edit, delete, and add new items to the database via the OpenLaszlo user interface (UI).
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Tutorials |
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25 Apr 2006 |
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Extract database information using Eclipse and BIRT V2.0
The Eclipse Business Intelligence and Reporting Tools (BIRT) project comprises a set of open source plug-ins for Eclipse that you can use to create compelling reports for Web applications. Learn how to install BIRT V2.0, configure it for use with a database, employ its functionality to design dynamic reports and charts, and create templates for future reports.
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Tutorials |
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25 Apr 2006 |
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Quality busters: Compare Web site appearance and functionality
Discover how to shift the priorities of your Web site from appearance to functionality and use Web standards to ensure cross-browser compatibility in this column by Michael Russell.
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Articles |
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18 Apr 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 2
Learn about several basic database concepts, including schemas, tables, and column data types, and get a simple introduction to Structured Query Language (SQL). This article -- focusing on the database developer role -- presents the basic data types you can use to store data in an Apache Derby database, and then you'll use them to create a simple schema with two tables in Apache Derby for a fictitious store. To view the schema contents of a database, you'll use the Apache Derby tool, dblook, to dump the contents of the database. The article wraps up with a brief discussion on dropping tables.
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Articles |
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18 Apr 2006 |
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Create an Eclipse game plug-in, Part 3: Gaming the system
Although most users think of Eclipse as an integrated development environment for building Java technology applications, it is really something much more basic. Eclipse is a framework for building plug-ins, allowing you to extend its functionality to solve nearly any problem -- just by leveraging a set of APIs and readily available libraries. In this four-part "Create an Eclipse game plug-in" tutorial series, you will solve a pressing problem most programmers encounter daily: how to break away to play a quick video game without switching applications and making it obvious. You'll develop a simple game that will read the bugs entered on the a view and blast them to bits. The game will run inside Eclipse as a plug-in, that will demonstrate how to write to the Eclipse API, while using the Standard Widget Toolkit, the Open Graphics Library, and the Lightweight Java Games Library. Part 3 games the system up with collision detection between the bugs and BBs, destroying the bugs.
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Tutorials |
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18 Apr 2006 |
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Make Ant easy with Eclipse
Eclipse can make working with Apache Ant easier. Discover the Ant integration features in the Eclipse integrated development environment (IDE), and learn how to write, build, and debug code in Eclipse through the Ant editor.
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Tutorials |
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18 Apr 2006 |
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Cultured Perl: Perl books, Part 2
Take a look at two divergent texts on system administration. Unix Power Tools, by Shelley Powers, Jerry Peek, Tim O'Reilly, and Mike Loukides, covers the basics in a sound, readable manner and is a must-have book for any sysadmin. Analytical Network and System Administration by Mark Burgess is an advanced take on systems administration for those with a solid grounding in theoretical computer science and mathematics.
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Articles |
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13 Apr 2006 |
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IBM WebSphere Developer Technical Journal: Get started with WebSphere Application Server Community Edition
IBM WebSphere Application Server Community Edition is an open source
Java 2 Platform, Enterprise Edition (J2EE) application server based on Apache
Geronimo. This article will help you understand why you might want to use this
new product, when it might be the best choice for your project, and then walks
you through what you need to know to get up and running quickly with WebSphere
Application Server Community Edition, from setting up your environment and
choosing the right download package to deploying applications. Updated for
V1.0.1.1.
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Articles |
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11 Apr 2006 |
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Spice up PHP applications with OpenLaszlo, Part 3: Adding a database
This "Spice up PHP applications with OpenLaszlo" tutorial series shows how to use OpenLaszlo to create a more interactive interface for your PHP applications and how to use PHP to create more dynamic OpenLaszlo applications. It requires a basic understanding of -- or willingness to learn -- XML, JavaScript, and PHP. Part 3, the final part of the series, takes things a step further, showing how to put an application into an ODBC database and create a library that generates OpenLaszlo code using PHP dynamically.
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Tutorials |
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11 Apr 2006 |
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Leave Eclipse plug-in headaches behind with OSGi
Find out how to write extensions in code for other plug-ins while not creating a binary dependency on those other plug-ins with the Eclipse V3.2's dynamic-extensions API. Accomplish all of this and more with the Open Services Gateway Initiative (OSGi) services API and the dynamic APIs.
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Articles |
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11 Apr 2006 |
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Spice up PHP applications with OpenLaszlo, Part 2: PHP REST and data binding
This "Spice up PHP applications with OpenLaszlo" tutorial series shows how to use OpenLaszlo to create a more interactive interface for your PHP applications and how to use PHP to create more dynamic OpenLaszlo applications. It requires a basic understanding of -- or willingness to learn -- XML, JavaScript, and PHP. In Part 2 of this four-part series, we explore an important distributed application architecture called Representational State Transfer (REST), which will be used to extend the knock-knock protocol described in Part 1 to use XML, instead of HTML.
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Tutorials |
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04 Apr 2006 |
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LPI exam 102 prep, Topic 106: Boot, initialization, shutdown, and runlevels
In this tutorial, Ian Shields continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this second in a series of nine tutorials, Ian introduces you to startup and shutdown on Linux. By the end of this tutorial, you will know guide a system through booting, set kernel parameters, and shut down or reboot a system.
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Tutorials |
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04 Apr 2006 |
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Paint 3-D images with PHP
PHP, a language originally intended for Web development, has been used for years to manage dynamic Web sites and database applications. Extensions to the language available through the PHP Extension and Application Repository (PEAR) have allowed developers to take the language in new and interesting directions. PEAR's Image_3D package is an object-oriented interface for creating three-dimensional (3-D) graphics in a variety of formats, including PNG and SVG, two image formats with increasing support by modern Web browsers. Find out how to use the Image_3D package, learn the limitations of using dynamic 3-D images, and investigate solutions and practical applications of 3-D graphics.
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Tutorials |
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04 Apr 2006 |
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Speed your code with the GNU profiler
Improving the performance of your applications is rarely a wasted effort, but it's not always clear which functions the program is spending most of its execution time on. Learn how to pinpoint performance bottlenecks using gprof for both user-space and system calls on Linux.
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Articles |
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03 Apr 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Database development with Apache Derby, Part 1
Ready to start using Apache Derby? This multi-part series featured in the "Developing with Apache Derby: Hitting the Trifecta" column will get you up and running with the Derby database in no time. This first installment introduces the basic concepts of relational databases with an emphasis on how these topics relate to the Derby database. You'll learn about the ACID test, demonstrated with a simple example, and the ij tool, which you can use to interactively connect to and query an Apache Derby database. Then the rest of this series will help you become a master at working with Apache Derby.
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Articles |
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28 Mar 2006 |
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Distributed multihead support with Linux and Xdmx
Learn about the tools available to develop your own multiscreen configuration and physical layout to enhance your computing experience. You can use Linux and Xdmx to create one contiguous desktop across multiple display devices attached to separate computers. Combine your available laptop and desktop computers running Linux to create one large display for enhanced productivity. Explore large-scale display-wall setups and the creation of multihead setups without purchasing graphics cards.
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Articles |
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28 Mar 2006 |
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Create an Eclipse game plug-in, Part 2: Building and firing a BB gun
Although most users think of Eclipse as an integrated development environment for building Java technology applications, it is really something much more basic. Eclipse is a framework for building plug-ins, allowing you to extend its functionality to solve nearly any problem -- just by leveraging a set of APIs and readily available libraries. In this four-part "Create an Eclipse game plug-in" tutorial series, you will solve a pressing problem most programmers encounter daily: how to break away to play a quick video game without switching applications and making it obvious. You'll develop a simple game that will read the bugs entered on the a view and blast them to bits. The game will run inside Eclipse as a plug-in, that will demonstrate how to write to the Eclipse API, while using the Standard Widget Toolkit, the Open Graphics Library, and the Lightweight Java Games Library.
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Tutorials |
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28 Mar 2006 |
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Introducing The Open Group Architecture Framework (TOGAF), Part 2: Explore an industry standard for defining an enterprise architecture
The Open Group Architecture Framework (TOGAF) provides architects a methodology for gaining control over enterprise architecture and IT. Learn about this important industry standard.
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Articles |
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28 Mar 2006 |
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LPI exam 102 prep, Topic 105: Kernel
In this tutorial, Ian Shields begins preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this first in a series of nine tutorials, Ian introduces you to the kernel on Linux. By the end of this tutorial, you will know how to build, install, and query a Linux kernel and its kernel modules.
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Tutorials |
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21 Mar 2006 |
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LPI exam 102 prep, Topic 105: Kernel
In this tutorial, Ian Shields begins preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this first in a series of nine tutorials, Ian introduces you to the kernel on Linux. By the end of this tutorial, you will know how to build, install, and query a Linux kernel and its kernel modules.
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Tutorials |
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21 Mar 2006 |
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Crossing borders: Continuations, Web development, and Java programming
The Crossing borders series looks at how non-Java languages solve major problems and what those solutions mean to Java developers today. This article explores continuations, the technique behind frameworks like Smalltalk's Seaside. Continuation servers make it much easier to build Web applications by offering a stateful programming model without giving up the scalability inherent in statelessness.
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Articles |
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21 Mar 2006 |
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Use Apache Derby in your OpenLaszlo applications, Part 1: Supplying data using Derby
Since OpenLaszlo's open source announcement, many developers have been using OpenLaszlo to create user-friendly, rich Internet applications. Many of these applications require a database solution to have dynamic data fed to them. Because OpenLaszlo runs on Apache Tomcat by default, which in turn supports JavaServer Pages (JSP) and servlets (Java technology), Apache Derby is an excellent database to use. It can be embedded in such applications, and Derby is written in pure Java code. This tutorial uses an example of an online grocery store to illustrate the power of using OpenLaszlo with Apache Derby.
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Tutorials |
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21 Mar 2006 |
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Use PHP to build a search engine optimization app: Creating reports and billing clients
PHP, a dynamic Web-based programming language, takes a variety of input formats and has a built-in SOAP client to obtain information from the Web. PHP, combined with applications using search engine optimization (SEO), is a powerful tool for obtaining information from major search engines, allowing this information to guide a webmaster's online marketing and SEO strategies. In this final part of a two-part "Use PHP to build a search engine optimization app" series, we add two search venues and the functionality to search all or just one of the search engines. You will also extend the Apache Derby database to provide support for billing clients.
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Tutorials |
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21 Mar 2006 |
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Explore Eclipse's embedded Rich Client Platform
Get an introduction to the embedded Rich Client Platform (eRCP). Learn about the various components that make up eRCP and get some examples on how to use them in your applications.
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Articles |
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21 Mar 2006 |
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Cultured Perl: Perl books, Part 1
Take a tour of two solid additions to any Perl library, the beginner-oriented Randal Schwartz's Perls of Wisdom by Randal Schwartz, and the more advanced Higher-Order Perl by Mark Jason Dominus.
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Articles |
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15 Mar 2006 |
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Spice up PHP applications with OpenLaszlo, Part 1: Create interactive interfaces
This "Spice up PHP applications with OpenLaszlo" tutorial series shows you how to use OpenLaszlo to create a more interactive interface for your PHP applications and how to use PHP to create more dynamic OpenLaszlo applications. It requires a basic understanding of -- or willingness to learn -- XML, JavaScript, and PHP. Each is well worth knowing for its own merits, plus they plug and play together nicely, since they're all based on synergistic open standards.
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Tutorials |
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14 Mar 2006 |
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Recommended PHP reading list
Learn about PHP (Hypertext Preprocessor) with this reading list compiled for programmers and administrators by IBM Web application developers.
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Articles |
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14 Mar 2006 |
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Getting started with the Eclipse Communication Framework
The Eclipse Communication Framework (ECF) is a new Eclipse project devoted to providing an open source framework supporting the creation of communications-based applications on the Eclipse platform. Find out about the ECF, its basic capabilities, and its future direction.
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Articles |
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14 Mar 2006 |
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Use PHP to build a search engine optimization app, Part 1: Getting started
PHP, a dynamic Web-based programming language, takes a variety of input formats and uses a built-in SOAP client to obtain information from the Web. PHP, combined with applications using search engine optimization (SEO), is a powerful tool for obtaining information from major search engines, allowing this information to guide a webmaster's online marketing and SEO strategies. Find out how to take advantage of these strategies by building the back end of an application to monitor and track your client's SEO efforts.
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Tutorials |
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14 Mar 2006 |
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Build GUIs with the Eclipse Visual Editor project
Like many Eclipse.org projects, the goal of the Visual Editor project is to
build a tool for building tools, in this case, tools for building graphical user
interfaces (GUIs). The Visual Editor project has released a reference implementation.
The Visual Editor release 0.5 is a GUI builder for AWT/Swing applications, a
long-awaited Eclipse feature. Release 1.0 includes support for SWT. Get an overview of
Visual Editor and the technology behind it, along with a short demonstration of Visual
Editor V0.5's features for building AWT/Swing applications and a preview of the SWT
support in Visual Editor V1.0.
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Articles |
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14 Mar 2006 |
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Improve persistence with Apache Derby and iBATIS, Part 3: Transactions, caching, and dynamic SQL
This tutorial series has been demonstrating how you can improve persistence in your database-driven Java applications by combining Apache Derby's power as a small-footprint embeddable database with the iBATIS object-relational (OR) mapping framework. In Part 3, the final in the series, learn how iBATIS handles three advanced features of database-driven applications: transactions, caching, and dynamic SQL. Plus, find out how the Data Access Objects (DAO) framework can operate on its own without the Data Mapper framework.
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Tutorials |
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07 Mar 2006 |
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Drag and drop Eclipse Workbench tabs
Learn a technique for programmatically customizing the drag-and-drop behavior of Editor and View tabs in Eclipse. The technique is demonstrated with an example that associates Editor parts with the transfer type "org.eclipse.ui.part.EditorInputTransfer", thus enabling the drag and drop of Editor tabs over targets that support this transfer type. A similar demonstration is also provided for View parts. Familiarity with basic SWT drag-and-drop techniques is assumed.
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Articles |
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07 Mar 2006 |
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GTK+ fundamentals, Part 3: How to deploy GTK+
The previous two articles in this "GTK+ fundamentals" series explained what GTK+ is and what it's used for. This article, the final installment in the series, covers everything you need to get your product to the user -- that is, you learn how to deploy a GTK+ application.
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Articles |
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07 Mar 2006 |
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Create an Eclipse game plug-in, Part 1: Getting started
Although most users think of Eclipse as an Integrated Development Environment (IDE) for building Java applications, it is really something much more basic. Eclipse is a framework for building plug-ins, allowing any developer to extend its functionality to solve nearly any problem, just by leveraging a set of APIs and readily available libraries. In this four-part "Create an Eclipse game plug-in" tutorial series, you will solve a pressing problem most programmers encounter daily: how to break away to play a quick video game without switching applications and making it obvious. You will also learn the Eclipse plug-in architecture and learn how to define your own plug-in, develop an interface using SWT, and create code that interacts with other Eclipse resources.
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Tutorials |
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07 Mar 2006 |
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In pursuit of code quality: Resolve to get FIT
Find out how the Framework for Integrated Tests facilitates
communication between the business clients who write requirements and
the developers who implement them.
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Articles |
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28 Feb 2006 |
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All Hail Shale: Shale isn't Struts
What Shale isn't is a shrink-wrapped, well-documented, well-tested product complete with an automated installer and a polished management interface. Now find out what it is, as Brett McLaughlin unveils this mighty -- and rightful -- heir to the legacy of Struts. In this first article of the series, Brett explains what Shale is, how it's different from the Struts framework, and how to install and set it up in your development environment.
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Articles |
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28 Feb 2006 |
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Get started with an open source CMS, Part 5: Build a PHP WebDAV client for Jakarta Slide
In this tutorial, the fifth in the series, learn how to create a PHP Web-based Distributed Authoring and Versioning (WebDAV) Client for Jakarta Slide that you can use to build PHP applications for content management. With this knowledge, you can then go on to build other PHP applications on a system that can manage numerous users and documents.
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Tutorials |
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24 Feb 2006 |
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Improve persistence with Apache Derby and iBATIS, Part 2: Data definition in Derby
In this second tutorial of a three-part series, learn more about how you can improve persistence in your database-driven Java applications by combining Apache Derby's power as a small-footprint embeddable database with the iBATIS object-relational (OR) mapping framework. In Part 2, you use iBATIS's Data Access Objects (DAO) and Data Mapper to access an application's underlying data structure effectively.
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Tutorials |
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21 Feb 2006 |
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SWT, Swing or AWT: Which is right for you?
By providing a comparison of Eclipse's SWT with the Java Swing and Abstract Windows Toolkit (AWT) GUI tool kits, this article helps developers of new applications decide which to choose. Read descriptions of each tool kit's basic features, and the pros and cons of using each.
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Articles |
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21 Feb 2006 |
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Explore the new features of Eclipse V3.1
This tutorial demonstrates many of the new features found in the most recent release of Eclipse V3.1. You will find this tutorial useful if you're considering upgrading to V3.1 from a previous release, or if you're considering switching to Eclipse from another integrated development environment. You may also find it useful if you want to revise your code to take advantage of the latest iteration of the Java programming language, Java 2 Standard Edition V1.5, which adds a number of powerful constructs and conveniences to Java technology.
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Tutorials |
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21 Feb 2006 |
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An introduction to the Eclipse Web Tools Platform V1.0
The Eclipse Web Tools Platform (WTP) extends the Eclipse IDE to enable easy development of Java 2 Enterprise Edition (J2EE)-based applications. Learn how to install WTP, configure it for use with an application server, and use the tools it provides to create a J2EE application.
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Tutorials |
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21 Feb 2006 |
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Domain names as mobile phone numbers
Learn how you can take the Domain Name System (DNS), which is used primarily on the Internet, and implement it in mobile phones. Find out what DNS is all about, how mobile phones actually work behind the scenes, and how a domain name can simplify how you contact a mobile user.
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Articles |
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21 Feb 2006 |
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Architectural manifesto: How to choose a mobile platform
With so many great options, choosing the right technology for your mobile development projects can leave you spoiled for choice. This month's column lends a helping hand by teaching you to ask all the right questions before you get started.
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Articles |
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21 Feb 2006 |
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Manage your Eclipse environment
The continuing growth of Eclipse means that there will always be an increase in the number of projects and plug-ins to manage. As a developer, this management process can be frustrating when staying up to date with the latest Eclipse builds. As a new user, the concept of projects, plug-ins, workspaces, and installations may seem daunting at first. This article aims to show some best practices for managing your Eclipse environment.
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Articles |
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14 Feb 2006 |
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Create a blog from scratch with PHP and Subversion
PHP is a great Web programming language to use when creating dynamic Web sites, such as blogs. This tutorial explains how to build a blog from scratch, while storing data using flat files. The Web site will be backed up on a remote system using Subversion, protecting data in the event of a Web-site crash. Subversion is growing in popularity, and it is a great candidate to back up the Web site. With Subversion, it's also possible to roll back the Web site to earlier versions of the blog if your server crashes, or if you just didn't like last week's rambling.
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Tutorial |
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14 Feb 2006 |
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Network services: Legacy design versus threaded design
So, you've got a great idea for a new network service that'll change the world, and you've just finished your first set of socket programming tutorials. Now you've just got to design the thing and finish off a test implementation, right? Traditionally, programs like this use the venerable UNIX(R) fork() system call to handle connections in a child process, but this is slow and inefficient, even on modern UNIXes. In this article, you'll get a look at using POSIX threads instead of child processes, and you'll also get an introduction to threaded programming -- a topic many UNIX programmers haven't encountered before.
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Articles |
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14 Feb 2006 |
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Criar um Blog a partir do Início com PHP e Subversion
PHP é uma excelente linguagem de programação da Web para ser usada ao criar Web sites dinâmicos, como blogs. Este tutorial explica como construir um blog a partir do início, enquanto armazena dados usando arquivos simples. Será feito backup do Web site em um sistema remoto usando o Subversion, protegendo os dados em caso de travamento do Web site. A popularidade do Subversion está crescendo e ele é um grande candidato para fazer backup do Web site. Com o Subversion, também é possível retroceder o Web site para versões anteriores do blog se seu servidor travar ou se, simplesmente, você não tiver gostado da postagem divagante da semana passada.
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Tutorial |
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14 Feb 2006 |
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Introduction: Eclipse Test and Performance Tools Platform
Learn how to use the Eclipse Test and Performance Tools Platform (TPTP) to profile a Java application, and discover how to quantify memory usage, identify memory leaks, and isolate performance bottlenecks.
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Tutorials |
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14 Feb 2006 |
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Create a blog from scratch with PHP and Subversion
PHP is a great Web programming language to use when creating dynamic Web sites, such as blogs. This tutorial explains how to build a blog from scratch, while storing data using flat files. The Web site will be backed up on a remote system using Subversion, protecting data in the event of a Web-site crash. Subversion is growing in popularity, and it is a great candidate to back up the Web site. With Subversion, it's also possible to roll back the Web site to earlier versions of the blog if your server crashes, or if you just didn't like last week's rambling.
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Tutorials |
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14 Feb 2006 |
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Developing with Apache Derby -- Hitting the Trifecta: Introduction to Apache Derby
At some point, almost every application developer confronts the need to save data. With the growth of Internet- or Web-enabled applications, this need has become even more acute. This installment of the regular column "Developing with Apache Derby -- Hitting the Trifecta" introduces Apache Derby -- an open source, standards-based, small-footprint Java database system -- compares it to other database systems, and discusses issues related to downloading and installing it. By the end of this article, you'll be ready to start developing database applications using Derby.
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Articles |
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14 Feb 2006 |
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LPI exam 101 prep, Topic 110: The X Window System
In this tutorial (the last in a series of five tutorials), Ian Shields introduces you to the X Window System on Linux, and in doing so, continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 101. In this tutorial, you learn how to install and maintain the X Window System. This tutorial covers both major packages for X on Linux: XFree86 and X.Org.
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Tutorials |
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14 Feb 2006 |
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Introducing The Open Group Architecture Framework (TOGAF), Part 1: Understand TOGAF and IT architecture in today's world
Discover how The Open Group Architecture Framework (TOGAF) open standard framework came to be and how it can make you a better IT architect.
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Articles |
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14 Feb 2006 |
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Eclipse Test & Performance Tools Platform, Part 1: Test, profile, and monitor applications
Learn how to use the Eclipse Test & Performance Tools Platform (TPTP) to profile a Java application, and discover how to quantify memory usage, identify memory leaks, and isolate performance bottlenecks.
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Tutorials |
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14 Feb 2006 |
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Java Web services: O futuro no Java Web services
O ano que vem trará mudanças expressivas para o cenário dos serviços da Web. Para os desenvolvedores de Java, estas mudanças incluirão tanto novas estruturas de serviços de Web quanto novas camadas de funcionalidades criadas com base nos serviços da Web. Nesta primeira parte de sua série "Java Web Services", Dennis Sosnoski fala sobre as próximas alterações e esboça uma direção para os leitores.
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Articles |
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09 Feb 2006 |
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Java Web services: The year ahead in Java Web services
The coming year is bringing dramatic changes to the Web services landscape. For Java developers, these changes will include both new Web services frameworks and new layers of functionality built on top of Web services. In this first part of his "Java Web Services" series, Dennis Sosnoski looks at the coming changes and plots a course for readers.
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Articles |
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09 Feb 2006 |
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Como Depurar Aplicações Perl com o Eclipse
A depuração de aplicações Perl pode ser um processo frustrante. Muitos programadores de Perl dependem das instruções de impressão e da chamada "depuração post mortem". Outros usam o depurador de Perl embarcado. Nenhuma das duas opções fornecem um ambiente de execução coerente para monitorar a execução de um script e nenhumas das duas suporta a depuração de um script Common Gateway Interface (CGI) durante a execução. Neste tutorial, vamos dar uma olhada na funcionalidade oferecida pelo plug-in Eclipse Perl Integration (EPIC) no Eclipse, que oferece um ambiente de depuração rico disponível e embarcado ao ambiente de desenvolvimento EPIC Perl.
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Tutorial |
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07 Feb 2006 |
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Run PHP applications in Apache Geronimo
PHP has been a popular scripting language for some time. However, with the growing buzz over Java technology and Apache Geronimo, a J2EE-certified application server, many experienced developers shy away from using PHP with Geronimo, because only JavaServer Pages (JSP) is supported out of the box. The PHP Java Bridge solves this problem by providing full support for PHP on Geronimo and for sharing sessions across both PHP and JSP scripts.
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Tutorials |
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07 Feb 2006 |
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How to debug Perl apps with Eclipse
Debugging Perl applications can be a frustrating process. Many Perl programmers rely on print statements and so-called "postmortem debugging." Others use the built-in Perl debugger. Neither provides a coherent execution environment for monitoring the execution of a script, and neither supports the debugging of a Common Gateway Interface (CGI) script during execution. In this tutorial, we will look at the debugging functionality offered by the Eclipse Perl Integration (EPIC) plug-in for Eclipse, which offers a rich debugging environment available and integrated with the EPIC Perl development environment.
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Tutorials |
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07 Feb 2006 |
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Going dynamic with PHP
PHP V5's new object-oriented programming features have raised the level of functionality in this popular language significantly. Learn how to use the dynamic features of PHP V5 to create objects that bend to fit your needs.
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Articles |
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07 Feb 2006 |
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Discover Python, Part 9: Putting it all together
Previous articles in this Discover Python series have discussed a number of topics that confront beginning Python programmers, including variables, container objects, and compound statements. This article builds on these concepts to construct a complete Python program. It introduces Python functions and modules and shows how to build a Python program, store it in a file, and run it from the command line.
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Articles |
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31 Jan 2006 |
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Distribute software on a Linux LiveCD
Linux LiveCDs contain the operating system and applications all on a single CD and are a handy way to distribute software when compactness, portability, and/or security matter.
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31 Jan 2006 |
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Back to school with education LiveCDs
Make open source education tools available on your Linux system without lengthy installation and configuration efforts. Discover three packages -- FreeDUC, Knoppix for Kids, and Vigyaan -- that make it easy to set up a learning environment.
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Articles |
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31 Jan 2006 |
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Restore compromised systems with diagnostics LiveCDs
Want to assess your Linux system's integrity and recover lost data without lengthy installation and configuration efforts? Get to know two packages -- Helix and Plan-B -- that bring you that ability through the magic of LiveCD.
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Articles |
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31 Jan 2006 |
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Rock your desktop with entertainment LiveCDs
Listen to music and watch DVDs on your Linux system without lengthy installation and configuration efforts. Learn about four packages -- MoviX2, GeeXBoX, WOMP!, and LLGP -- that put the fun back into your computer.
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Articles |
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31 Jan 2006 |
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Using CruiseControl with Eclipse
This tutorial provides a high-level overview of how to use CruiseControl, Luntbuild, and Anthill with Eclipse. Use these applications for implementing continuous-integration builds that provide quick feedback whenever something changes with a project's source.
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Tutorials |
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31 Jan 2006 |
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Persist arbitrary data to Apache Derby
You can quickly and easily persist simple data to Apache Derby by taking advantage of Java dynamic proxies. In this tutorial, write a persistence API that you can integrate into any database-powered Java application. You use the API to store an application's configuration information and to notify the application when configuration items change.
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Tutorials |
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31 Jan 2006 |
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User annotations in Ajax
The ability to add notes and comments to your Web site can be a powerful and attractive feature for users. This tutorial demonstrates how to implement an Asynchronous JavaScript and XML (AJAX)-based user annotation system in the form of yellow sticky notes that sit on top of regular Web page content. The only additional, required configuration is a back-end Perl script that stores the annotations
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Tutorials |
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31 Jan 2006 |
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Create mosaic images with Perl and ImageMagick
Use simple Perl scripts to automate the image manipulation, text creation, and compositing of arbitrary mosaic images. Learn how to use ImageMagick, GD, and The Gimp to create your own mosaic images suitable for static display and dynamic content. Explore the capabilities of ImageMagick and open source graphical editing tools.
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24 Jan 2006 |
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Generate PDF files from Java applications dynamically
If your application needs to generate PDF documents dynamically, you need the iText library. The open source iText library makes PDF creation a snap. This article introduces iText and gives a step-by-step guide to using it to generate PDF documents from Java technology applications. We create a sample application to better understand iText.
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24 Jan 2006 |
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Improve persistence with Apache Derby and iBATIS, Part 1: Initial configuration, semantics, and a simple test
The iBATIS database-mapping framework -- a popular Java framework for object-relational (OR) mapping -- is now an Apache open source project. This tutorial is the first in a three-part series demonstrating how to combine Apache Derby's power as a small-footprint embeddable database with iBATIS and use this combination to improve persistence in your database-driven Java applications. In Part 1, you learn about iBATIS's advantages as a persistence mechanism and focus on the iBATIS Data Mapper framework.
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Tutorials |
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24 Jan 2006 |
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Create your own real-time visual effects
Use EffecTV and Simple DirectMedia Layer (SDL) to create your own real-time visual effects on live video. Learn how to integrate geometric primitives, bitmap image loading, and simple motion tracking to create your own games, leading-edge user interfaces, or immersive environments. Explore the EffecTV and SDL architectures, and learn how to harness the power of open source video processing on Linux.
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Articles |
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17 Jan 2006 |
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How to turn your PHP application into a bot
A freely available module allows your PHP application to attach to an IRC server and respond to messages. To illustrate how to use the module, this article shows you how to create an IRC bot in PHP that can tell you the weather on demand for a ZIP code.
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Articles |
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17 Jan 2006 |
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Build Perl applications with Eclipse
The EPIC project lets developers build, edit, and develop Perl-based applications using the Eclipse IDE. In this tutorial, we look at the EPIC plug-in, how it can be used to develop Perl applications, and how it can be integrated into existing development processes.
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Tutorials |
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17 Jan 2006 |
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Implement MVC in custom SWT components
Eclipse SWT (Standard Widget Toolkit) offers an extensive set of APIs to implement your custom-made widgets. In this article, the author briefly outlines the MVC (Model-View-Controller) architecture, explains the current implementation of MVC in the form of structured viewers, and shows an implementation using a custom SWT widget.
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Articles |
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11 Jan 2006 |
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GTK+ fundamentals, Part 2: How to use GTK+
This article, the second in a three-part series titled "GTK+ fundamentals," introduces you to programming with GTK+. It analyzes a sample GTK+ application written in C, then shows that same application written in Python and C#. Finally, it discusses some useful tools that can help you develop better applications faster with GTK+.
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Articles |
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10 Jan 2006 |
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How to use regular expressions in PHP
Regular expressions can provide a powerful way to work with text. Using regular expressions, you can do complex validation of user input, parse user input and file contents, and reformat strings. PHP provides simple methods that let you use POSIX and PCRE regular expressions. This article discusses the differences between POSIX and PCRE, and how you can use regular expressions and PHP V5.
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Tutorials |
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10 Jan 2006 |
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In tune with Tapestry, Part 2
The Tapestry framework allows Java and Web developers
to develop servlet-based Web applications that are dynamic, lightweight,
and responsive. Continue getting to know Tapestry this month, as Brett
McLaughlin shows you how to plan the development of a Tapestry application
and create useful, robust Tapestry components.
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Articles |
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10 Jan 2006 |
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Get started with an open source CMS, Part 4: Create an Apache Derby JDBC store adapter
In this tutorial, Part 4 of a developerWorks series, find out how to create a custom store for Jakarta Slide that uses Apache Derby. Build a new database adapter to use Derby as the content and metadata store for Slide using Java Database Connectivity (JDBC), and learn how to handle problems, such as SQL syntax errors and INSERT trigger issues.
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Tutorials |
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10 Jan 2006 |
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In tune with Tapestry, Part 1
In this first half of a two-part article, author and frequent developerWorks contributor Brett McLaughlin shows you around Tapestry, from installation to file structure. See for yourself how Tapestry facilitates servlet-based Web application development using HTML and template tags.
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Articles |
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04 Jan 2006 |
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Deploy J2EE applications on Apache Geronimo
Learn how to deploy JavaServer Pages (JSPs), servlets, and different Enterprise JavaBeans (EJBs) on Apache Geronimo. This article includes the deployment steps required for Apache Geronimo, which are different from other Java 2 Platform, Enterprise Edition (J2EE) containers.
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Articles |
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03 Jan 2006 |
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Discover Python, Part 8: Reading and writing data using Python's input and output functionality
In this article, you learn how to work with files. First, we review a simple way to output data in Python, using the print statement, then learn about the file object, which is used by Python programs to read and write data to a file. The different modes with which a file can be opened are demonstrated, and the article concludes by showing how to read and write a binary file.
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Articles |
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03 Jan 2006 |
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Four cool libraries for Ruby
This tutorial presents four members of Ruby's standard library: RDoc, WEBrick, dRuby, and REXML. Learning to use the standard library more effectively will help improve your Ruby code and let you concentrate on the important parts of your code.
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Tutorials |
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03 Jan 2006 |
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LPI exam 101 prep, Topic 104: Devices, Linux filesystems, and the Filesystem Hierarchy Standard
In this tutorial (the fourth in a series of five tutorials), Ian Shields introduces you to Linux devices, filesystems, and the Filesystem Hierarchy Standard, and in doing so, continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 101. This tutorial shows you how to create and format partitions with different Linux filesystems and how to manage and maintain those systems.
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Tutorials |
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28 Dec 2005 |
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Perl programming with DB2 Universal Database
Learn how to write simple Perl programs that extract or manipulate data stored in DB2 UDB. You will go from the simple task of selecting a row from a database into a Perl program, to more advanced topics, including dealing with large objects and invoking stored procedures.
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Articles |
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22 Dec 2005 |
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GTK+ fundamentals, Part 1: Why use GTK+?
This article, the first in a three-part series, introduces you to the world of GTK+. It explains what GTK+ is, why you should consider using it, and the benefits it provides. Together with the rest of the series, this installment provides enough introductory information that, if you decide to use GTK+ in your own projects, you'll know where to look for further materials.
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Articles |
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20 Dec 2005 |
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Introduction to Apache Derby
Get the basic skills you need to use Apache Derby in Java 2 Platform, Enterprise Edition (J2EE) environments where Derby is embedded as a database, such as in Apache Geronimo. This tutorial demonstrates how to embed Derby within Geronimo and how to use Derby and Geronimo to deploy a Web-based e-commerce application. It also helps you become familiar with Derby's system tools, a set of utilities that make application development with Derby easy and straightforward.
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Tutorials |
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20 Dec 2005 |
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Linux screensaver for Windows
Construct and package a Linux LiveCD so that it will install using the standard Microsoft Windows install process and will operate as a standard Windows screensaver. Answering the most common concern about open source software, this article shows that, yes, Linux will run under Windows.
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20 Dec 2005 |
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A gentle introduction to SWT and JFace, Part 4: How to use ToolBars and SashForms
This installment of A gentle introduction to SWT and JFace expands on what you've learned about creating applications using Java technology, Eclipse, and the SWT and JFace libraries. This installment shows you how to use ToolBars, CoolBars, Trays, SashForms, Links, and other controls, as well as several dialog types.
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20 Dec 2005 |
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Building cheat sheets in Eclipse
Cheat sheets help your customers get their hands dirty with your product and learn about its features interactively. This tutorial shows you how to develop interactive tutorials, called cheat sheets, for your Eclipse-based product or plug-in.
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Tutorials |
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13 Dec 2005 |
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Build rich Internet applications
Many users are dissatisfied with the capabilities and performance of today's HTML-based Web applications. Users want desktop application functionality with the ease of installation and accessibility that Web applications offer. This tutorial demonstrates how to develop, package, and deploy a rich Internet application using the open source OpenLaszlo framework, Eclipse-based Laszlo IDE, and Web Tools to build business applications that delight users.
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Tutorials |
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13 Dec 2005 |
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Discover Python, Part 7: Explore the Python type hierarchy
This article returns to the exploration of the Python type hierarchy and introduces the Python dictionary container type. Unlike the Python tuple, string, and list container types discussed in previous articles, the dictionary type is an unordered container that relies on a key-to-value mapping. As a result, items in a dictionary are accessed by a key value and not by their location within a sequence. The unique features of the dictionary type may seem unusual, but they provide a great deal of power when used properly.
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Articles |
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06 Dec 2005 |
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Create a UIMA component Web service, Part 1: Create a UIMA application using Eclipse
Search word processing documents, emails, video, and other unstructured information for specific text or even for concepts using the Unstructured Information Management Architecture (UIMA). Part 1 of this tutorial explains how to install and use the UIMA Eclipse plug-ins to create a simple UIMA application.
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Tutorials |
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06 Dec 2005 |
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Reading and writing the XML DOM with PHP
Myriad techniques are available for reading and writing XML in PHP. This article presents three methods for reading XML: using the DOM library, using the SAX parser, and using regular expressions. Writing XML using DOM and PHP text templating will also be covered.
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Articles |
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06 Dec 2005 |
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Debugging techniques for PHP programmers
Explore various methods for debugging PHP applications, including turning on error reporting in Apache and PHP, and by placing strategic print statements to locate the source of more difficult bugs through a simple example PHP script. The PHPeclipse plug-in for Eclipse, a slick development environment with real-time syntax parsing abilities, will also be covered, as well as the DBG debugger extension for PHPeclipse.
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Articles |
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29 Nov 2005 |
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Develop SQL databases with Eclipse, SQLExplorer, and Clay
Learn how to use Eclipse and the SQLExplorer plug-in to connect to any database that supports a JDBC driver. These tools allow you to view database schemas, view table data, add and edit table data, and write, edit, and execute SQL. You will also learn how to use Azzurri Clay to create Entity Relationship Diagrams (ERDs), reverse-engineer databases, add tables, edit tables, delete tables, edit relationships, add indexes, and change your underlying data model into different SQL dialects.
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Tutorials |
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29 Nov 2005 |
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Secrets of lightweight development success, Part 9: Continuations-based frameworks
By letting you look at Web requests as a single application instead of multiple requests, continuations can make it easier to manage state, improve the way components fit together, and simplify vexing problems, such as the Back button and threading. This article explores the continuations server approach.
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Articles |
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29 Nov 2005 |
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LPI exam 202 prep, Topic 206: Mail and news
In this tutorial, David Mertz continues preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 202. In this second of a series of seven tutorials on network administration on Linux, you learn how to use Linux as a mail server and as a news server. This tutorial covers mail transport, local mail filtering, and mailing list maintenance software. It also briefly discusses server software for the NNTP protocol.
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Tutorials |
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22 Nov 2005 |
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Create a Web storefront using PHP, Derby and PayPal, Part 3: Setting up orders, shipping, and e-mail
This series chronicles the building of a Web storefront in PHP using PHP Data Objects to access a Derby database. The storefront includes a user manageable shopping cart that allows item purchases using PayPal, and includes the ability for merchants to notify customers via e-mail on successful orders automatically. This final part covers the addition of transactions, a shipping component, and an e-mail notification feature.
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Tutorials |
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22 Nov 2005 |
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Create graphics the smart way with PHP
This article shows how to build an object-oriented graphics layer in PHP. Using object-oriented systems can make building complex graphics much easier than building the graphics using the primitives in the standard PHP library.
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Articles |
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22 Nov 2005 |
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Problem solving with Computational Infrastructure for Operations Research (COIN) source code
Computational Infrastructure for Operations Research (COIN) is an open source project developers can use to build optimization solutions. IBM mathematical optimization researchers are opening the code they use in finding the optimal allocation of limited resources. The code has many applications in a variety of industries.
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Articles |
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21 Nov 2005 |
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WebSphere migrations: Migrate applications from WebSphere Application Server Community Edition to other WebSphere Application Server products
Walk through the process of migrating a complex sample application from IBM WebSphere Application Server Community Edition to IBM WebSphere Application Server Base using Rational Application Developer. Involving JSPs, servlets, EJBs, messaging, and database access, this exercise will help you migrate your own applications, and address issues that can often cause problems during application migrations.
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Articles |
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15 Nov 2005 |
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LPI exam 101 prep, Topic 103: GNU and UNIX commands
In this tutorial (the third in a series of five tutorials), Ian Shields introduces you to the Linux command line and several GNU and UNIX commands, and in doing so, continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 101. This tutorial helps you learn to use commands on a Linux system.
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Tutorials |
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15 Nov 2005 |
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Open source licensing, Part 2: Academic v. reciprocal
Open source licenses provide the legal foundation for propagation of open source code. This article, the second of two in the "Open source licensing" series, explores the two most popular forms of open source licenses -- the academic license and the reciprocal license -- and describes the obligations of licensees that accept the terms of each.
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Articles |
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15 Nov 2005 |
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Create a Web storefront using PHP and PayPal, Part 2: Collecting payments
This series chronicles the building of a Web storefront in PHP using PHP Data Objects to access a Derby database. The storefront includes a user manageable shopping cart that allows item purchases using PayPal, and includes the ability for merchants to notify customers via e-mail on successful orders automatically. Part 2 covers creating shopping carts and making payments via PayPal.
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Tutorials |
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15 Nov 2005 |
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Make your Eclipse applications richer with view linking
Views in a rich GUI enhance the user experience by displaying information in a variety of ways. By their very nature, UI views depend on other views and need to interact. Eclipse makes it easy to link the UI views and provides ways to adapt view linking to non-UI scenarios.
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Articles |
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15 Nov 2005 |
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LPI exam 202 prep, Topic 205: Networking configuration
In this tutorial, David Mertz begins preparing you to take the Linux Professional Institute Intermediate Level Administration (LPIC-2) Exam 202. In this first of a series of seven tutorials on network administration on Linux, you learn to configure a basic TCP/IP network, from the hardware layer (usually Ethernet, modem, ISDN, or 802.11) through the routing of network addresses.
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Tutorials |
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08 Nov 2005 |
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Develop apps with Web services and the eBay SDK, Part 3: Develop eBay applications with PHP5 and Web services
Create applications in PHP5 that interact with eBay through Web services. Almost half of eBay's transactions occur through its Web services platform. In this tutorial, you'll acquire a solid understanding of the mechanics of the eBay XML API and learn how to use the Services_Ebay PHP extension.
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Tutorials |
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08 Nov 2005 |
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Create a Web storefront using PHP and PayPal, Part 1: Pouring the foundation database
This series chronicles the building of a Web storefront in PHP using PHP Data Objects to access a Derby database. The storefront includes a user manageable shopping cart that allows item purchases using PayPal, and includes the ability for merchants to notify customers via e-mail on successful orders automatically.
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Tutorials |
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08 Nov 2005 |
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Secrets of lightweight development success, Part 8: Seaside
Continuations, or high-level programming abstractions, are often seen as academic toys, but a new breed of Web server can make the average developer much more productive. Continuation servers let you support the Back button in Web browsers and code with a more consistent programming style. Developers the world over recognize Seaside as the top existing continuation server, but Seaside does much more than continuations.
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Articles |
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08 Nov 2005 |
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Build extra secure Web applications
Developers constantly fight the problems associated with action and data tampering in Web applications. This article provides a framework to secure these vulnerabilities. You can embed this framework, which offers a logical security design, in common presentation frameworks, such as Struts.
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Articles |
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01 Nov 2005 |
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Create an Amazon storefront using PHP, Part 2
This is Part 2 of a two-part tutorial that constructs an Amazon storefront using PHP and the Amazon E-Commerce Service (ECS). This tutorial shows how to create a shopping cart, a "browse for similar items" feature, a specialty theme shop, and a collectibles shop.
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Tutorials |
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01 Nov 2005 |
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Extending Spring JMX support
The Spring framework minimizes architectural
dependencies and externalizes composition in your applications, but
applications also need to be managed. Fortunately, Spring 1.2 includes
sophisticated JMX integration support -- and JMX delivers a practical
management infrastructure for your applications. In this article,
Claude Duguay takes Spring JMX a step further, showing you how to add
notification events to methods and attributes transparently. The
resulting code lets you monitor state changes without cluttering up
your Java objects.
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Articles |
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01 Nov 2005 |
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Book review: Autonomic Computing
Join me as I troll through Richard Murch's book from IBM Press, "Autonomic Computing," and find tools and resources for the system designer, administrator, and developer.
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Articles |
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25 Oct 2005 |
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Create a wiki system using Derby, Part 2: Java functions, procedures, and triggers
This two-part tutorial series demonstrates how to create a simple wiki system by embedding Apache Derby in a Web application server. Part 1 gave you an overview of the basic system and regular expressions. This tutorial shows you how to use Java functions, stored procedures, and triggers within the Derby database and outlines the advantages of using these features, including reducing the coupling between database and middle-tier code, minimizing the number of transactions opened, and increasing performance by reducing network traffic.
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Tutorials |
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25 Oct 2005 |
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Create an Amazon storefront using PHP: Create an Amazon storefront using PHP, Part 1
>This is the first of a two-part tutorial that constructs an Amazon storefront using PHP and the Amazon E-Commerce Service (ECS). The storefront constructed will allow shoppers to view items displayed in lists or search for specific items in the store. Part 2 will cover the shopping cart, recommendation service, and constructing a collectibles shop.
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Tutorials |
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25 Oct 2005 |
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Discover Python, Part 6: Programming in Python
This article explores the Python for loop. The for loop is used to iterate through the items in a Python collection, including the Python tuple, string, and list container types discussed in previous "Discover Python" articles. The for loop can also be used to access elements from a container type by using the range (or xrange) method. In addition, you can use the range method to execute a group of statements a specific number of times within a for loop.
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Articles |
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25 Oct 2005 |
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Using Ajax with PHP and Sajax
For years, the goal of creating a truly responsive Web application was hampered by one simple fact of Web development: To change the information on part of a page, a user must reload the entire page. Not anymore. Thanks to asynchronous JavaScript and XML (Ajax), we can now request new content from the server and change just part of a page. This tutorial explains how to use Ajax with PHP and introduces the Simple Ajax Toolkit (Sajax), a tool written in PHP that lets you integrate server-side PHP with JavaScript that makes this work.
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18 Oct 2005 |
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Java generics support in Eclipse V3.1
Java 5 offers generics support, a feature developers requested for years. It represents a significant upgrade to the Java language. With something as complex as generics also comes challenges, both for tool vendors and developers. This article highlights how Eclipse has responded and the changes wrought by generics to the Java programming language. It shows how to take full advantage of generics within Eclipse, including support in Quick Assist, Quick Fix, refactoring, and project preferences. It also shows some subtle and important aspects of a fully generic language.
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Articles |
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18 Oct 2005 |
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The future of the Web is Semantic
Explore the basics of Semantic Web technologies as Naveen Balani shows you how organizations can leverage ontology-based development. The Semantic Web can aid effective knowledge management and cost-effective product life cycle automation for faster development and integration processes.
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Articles |
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18 Oct 2005 |
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Create a wiki system using Derby, Part 1: The basic system and regular expressions
One form of communication gaining popularity today is the wiki, which enables users -- not just administrators -- to make changes to a Web site directly through the Web interface, automatically adding features, such as formatting and outgoing links. In this two-part series, you use the ability to embed Apache Derby in a Web application server to create a simple wiki system. This first tutorial gives you an overview of the basic system and regular expressions.
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Tutorials |
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18 Oct 2005 |
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3D graphics for Java mobile devices, Part 1: M3G's immediate mode
This article, the first in a two-part series, describes the Mobile 3D Graphics API (JSR 184). The author introduces you to 3D programming for Java mobile devices and shows how you can work with lights, cameras, and materials.
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Articles |
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11 Oct 2005 |
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Isolated unit testing of persistence with Derby
Get help developing your database-driven unit-testing skills. Without isolation and automation, database-driven unit tests can become a maintenance nightmare of sporadic failures and bad test data. The open source Apache Derby database is ideal for completely automating and isolating unit tests, because it offers fast, in-process performance and zero administration. This tutorial gives you step-by-step examples on using Derby to write effective and maintainable unit tests that improve the quality of your application.
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Tutorials |
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11 Oct 2005 |
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Automate your team's build and unit-testing process
Extreme programming and agile methods recommend that the development process include continuous integration and unit testing. A pragmatic way to support these practices is to set up an automated system to build and test the latest version of your source code every time it changes. This article guides you through the practical issues involved in setting up your own Linux-based build server for Java projects.
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Articles |
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11 Oct 2005 |
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Sockets programming in Ruby
This tutorial shows how to develop sockets-based networking applications using the Ruby language. You learn Ruby basics as well as the most important classes for sockets programming, and then look at a working chat application that illustrates these fundamentals. The tutorial finishes by exploring the higher-level classes that make it easy to build dynamic Web servers, mail servers and clients, and other application-layer protocols.
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Tutorials |
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11 Oct 2005 |
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Create a content management system with PHP and Derby
Learn how to build a simple content management system (CMS) that can be used to create, maintain, and submit a sitemap to Google automatically. Page content is managed through a database using PHP and a Web browser. When the system's content changes, the system creates and submits a sitemap to Google, speeding up the process of getting your new and updated content indexed.
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Tutorials |
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11 Oct 2005 |
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Open source licensing, Part 1: The intent
The phrase "open source license" refers to a large number of agreements that license the copyrights inherent in software widely, fairly, and with the fewest restrictions possible. This article -- the first of two -- describes the tenets of copyright and explains the intents of an open source license. Part 2 of this series explores individual licenses, such as the GNU Public License and the Apache License.
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Articles |
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04 Oct 2005 |
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Sockets programming in Python
This tutorial shows how to develop sockets-based networking applications using Python. In this tutorial, you first learn a few Python basics and see why Python makes a good network programming language. Then you move on to the basic sockets features of Python, using a sample chat application as a guide, and look at several other, high-level, classes that provide asynchronous communications.
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Tutorials |
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04 Oct 2005 |
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Build a dynamic Derby application
This tutorial shows you how to build a dynamic Java analysis application that connects to Apache Derby. Explore the dynamic way the database stores new application logic, changing the logic of the database without touching the core client program. And learn about Java archive (JAR) signing and how to provide security for the application that uses hot-swappable .jar files.
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Tutorials |
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04 Oct 2005 |
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Read and write Excel data with PHP
Learn how to use the XML support in PHP to read the data from the XML exported from Microsoft Excel 2003. Also, learn to export data from your PHP application as Excel XML so your users can see their data in a real spreadsheet.
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Articles |
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04 Oct 2005 |
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Linux project publications: RAS
The publications on this page represent contributions by members of the IBM Linux Technology Center to the development community on the topic of Reliability, Availability, and Serviceability (RAS).
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30 Sep 2005 |
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A gentle introduction to SWT and JFace, Part 3: How to use TabFolder, Canvas, and StyledText
This installment of A gentle introduction to SWT and JFace expands on what you've learned about creating applications using Java technology, Eclipse, and the SWT and JFace libraries. Find out how to use tabular tree, canvas, styled text, slider, spinner, scale and other controls, as well as stack layouts.
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Articles |
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27 Sep 2005 |
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Automating tasks with Rake
Find out about the Rake dependency management tool -- common uses of the tool, syntax of the executable configuration file, how to extend Rake using the Ruby programming language.
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Tutorials |
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27 Sep 2005 |
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Build a Derby calendar, Part 3
In this final tutorial of the series, you'll finish
the calendar and reminder application using Java language
and the Apache Derby database. In Part 1 and Part 2 of this
three-part series, you created a basic calendar and reminder
application using a Derby database back end and a GUI and a
Web-based front end. Now that the proof of concept is
complete, you can add a more friendly interface and use
transactions and locking to create a truly multiuser system.
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Tutorials |
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27 Sep 2005 |
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Build a Derby calendar, Part 2: Embedding options
Continue learning how to build a calendar and reminder application using the Java language and the Apache Derby database. In Part 2 of this three-part series, you'll turn the classes -- which you created to access the database in Part 1 -- into three different applications using Derby's single-user embedded mode, its multiuser network mode, and a combination of the two from within a Web environment.
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Tutorials |
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20 Sep 2005 |
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Discover Python, Part 5: Programming in Python
This article begins to demonstrate how to do things in Python by focusing on flow control, which is one of the simplest methods for writing programs. In this programming model, data is manipulated -- perhaps from a user interface, sensors, or a file; depending on the value of the data or resulting expressions, different actions are taken. Python provides several flow control mechanisms. This article discusses the if statement, and the while and for loops.
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20 Sep 2005 |
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Secrets of lightweight development success, Part 7: Java alternatives
The Java programming language is powerful, but it has significant limitations for lightweight development. For certain problems, other programming languages such as Ruby may lead to better productivity. Find out what's important for productivity in an application's language.
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20 Sep 2005 |
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Build quick, slick Web sites
With everyone from your eight-year-old neighbor to your eighty-year-old grandmother building Web sites, the Internet has become a slow-moving, bogged-down beast. But with just a few tricks using XHTML, you can build classy, beautiful sites that still load in the blink of an eye.
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20 Sep 2005 |
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Mono brings .NET apps to Linux
Mono, the open source development platform based on .NET, lets you build powerful, flexible Linux applications and still take advantage of cross-platform capabilities using a variety of .NET-compatible languages. This article walks you through installing Mono on your system and developing your first sample Mono-compiled C# application that runs on both Linux and Windows.
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19 Sep 2005 |
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Charming Python: Scaling a new PEAK
The Python Enterprise Application Kit (PEAK) is a Python framework for rapidly developing and reusing application components. While Python itself is already a very high-level language, PEAK provides even higher abstractions. One fairly recent capability added to PEAK is the capability to create generic functions and specifically to dispatch them on predicates, not simply on type. Sounds mysterious? Let's investigate.
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15 Sep 2005 |
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Getting started with an open source CMS, Part 3: Build a custom store
This tutori |
